diff --git a/.readthedocs.yml b/.readthedocs.yml
index 283f4f35..ac46269b 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -7,7 +7,5 @@ formats: all
 
 python:
   version: 3.8
-  install:
-    - method: pip
-      path: .
-    - requirements: docs2/requirements.txt
+  extra_requirements:
+    - docs
diff --git a/poetry.lock b/poetry.lock
index dbb93ede..bb48147b 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -42,8 +42,8 @@ python-socks = {version = ">=1.0.1", extras = ["asyncio"]}
 name = "alabaster"
 version = "0.7.12"
 description = "A configurable sidebar-enabled Sphinx theme"
-category = "dev"
-optional = false
+category = "main"
+optional = true
 python-versions = "*"
 
 [[package]]
@@ -64,7 +64,7 @@ python-versions = "*"
 
 [[package]]
 name = "aresponses"
-version = "2.0.0"
+version = "2.1.0"
 description = "Asyncio testing server. Similar to the responses library used for 'requests'"
 category = "dev"
 optional = false
@@ -143,8 +143,8 @@ python-versions = "*"
 name = "beautifulsoup4"
 version = "4.9.3"
 description = "Screen-scraping library"
-category = "dev"
-optional = false
+category = "main"
+optional = true
 python-versions = "*"
 
 [package.dependencies]
@@ -176,14 +176,6 @@ typing-extensions = ">=3.7.4"
 colorama = ["colorama (>=0.4.3)"]
 d = ["aiohttp (>=3.3.2)", "aiohttp-cors"]
 
-[[package]]
-name = "certifi"
-version = "2020.12.5"
-description = "Python package for providing Mozilla's CA Bundle."
-category = "dev"
-optional = false
-python-versions = "*"
-
 [[package]]
 name = "cfgv"
 version = "3.2.0"
@@ -204,7 +196,7 @@ python-versions = "*"
 name = "click"
 version = "7.1.2"
 description = "Composable command line interface toolkit"
-category = "dev"
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
 
@@ -212,13 +204,13 @@ python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
 name = "colorama"
 version = "0.4.4"
 description = "Cross-platform colored terminal text."
-category = "dev"
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
 
 [[package]]
 name = "coverage"
-version = "5.3"
+version = "5.3.1"
 description = "Code coverage measurement for Python"
 category = "dev"
 optional = false
@@ -247,8 +239,8 @@ python-versions = "*"
 name = "docutils"
 version = "0.16"
 description = "Docutils -- Python Documentation Utilities"
-category = "dev"
-optional = false
+category = "main"
+optional = true
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
 
 [[package]]
@@ -289,18 +281,18 @@ pygments = ">=2.2.0"
 
 [[package]]
 name = "furo"
-version = "2020.11.27b19"
+version = "2020.12.30b24"
 description = "A clean customisable Sphinx documentation theme."
-category = "dev"
-optional = false
+category = "main"
+optional = true
 python-versions = ">=3.5"
 
 [package.dependencies]
 beautifulsoup4 = "*"
-sphinx = ">3.0"
+sphinx = ">=3.0,<4.0"
 
 [package.extras]
-doc = ["myst-parser", "sphinx-inline-tabs"]
+doc = ["myst-parser", "sphinx-copybutton", "sphinx-inline-tabs"]
 test = ["pytest", "pytest-cov", "pytest-xdist"]
 
 [[package]]
@@ -313,7 +305,7 @@ python-versions = ">=2.6, !=3.0.*, !=3.1.*, !=3.2.*"
 
 [[package]]
 name = "identify"
-version = "1.5.10"
+version = "1.5.12"
 description = "File identification library for Python"
 category = "dev"
 optional = false
@@ -324,34 +316,35 @@ license = ["editdistance"]
 
 [[package]]
 name = "idna"
-version = "2.10"
+version = "3.1"
 description = "Internationalized Domain Names in Applications (IDNA)"
 category = "main"
 optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
+python-versions = ">=3.4"
 
 [[package]]
 name = "imagesize"
 version = "1.2.0"
 description = "Getting image size from png/jpeg/jpeg2000/gif file"
-category = "dev"
-optional = false
+category = "main"
+optional = true
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
 
 [[package]]
 name = "importlib-metadata"
-version = "3.1.1"
+version = "3.4.0"
 description = "Read metadata from Python packages"
 category = "dev"
 optional = false
 python-versions = ">=3.6"
 
 [package.dependencies]
+typing-extensions = {version = ">=3.6.4", markers = "python_version < \"3.8\""}
 zipp = ">=0.5"
 
 [package.extras]
-docs = ["sphinx", "jaraco.packaging (>=3.2)", "rst.linker (>=1.9)"]
-testing = ["pytest (>=3.5,!=3.7.3)", "pytest-checkdocs (>=1.2.3)", "pytest-flake8", "pytest-cov", "jaraco.test (>=3.2.0)", "packaging", "pep517", "pyfakefs", "flufl.flake8", "pytest-black (>=0.3.7)", "pytest-mypy", "importlib-resources (>=1.3)"]
+docs = ["sphinx", "jaraco.packaging (>=8.2)", "rst.linker (>=1.9)"]
+testing = ["pytest (>=3.5,!=3.7.3)", "pytest-checkdocs (>=1.2.3)", "pytest-flake8", "pytest-cov", "pytest-enabler", "packaging", "pep517", "pyfakefs", "flufl.flake8", "pytest-black (>=0.3.7)", "pytest-mypy", "importlib-resources (>=1.3)"]
 
 [[package]]
 name = "iniconfig"
@@ -402,7 +395,7 @@ python-versions = "*"
 
 [[package]]
 name = "isort"
-version = "5.6.4"
+version = "5.7.0"
 description = "A Python utility / library to sort Python imports."
 category = "dev"
 optional = false
@@ -415,24 +408,24 @@ colors = ["colorama (>=0.4.3,<0.5.0)"]
 
 [[package]]
 name = "jedi"
-version = "0.17.2"
+version = "0.18.0"
 description = "An autocompletion tool for Python that can be used for text editors."
 category = "dev"
 optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
+python-versions = ">=3.6"
 
 [package.dependencies]
-parso = ">=0.7.0,<0.8.0"
+parso = ">=0.8.0,<0.9.0"
 
 [package.extras]
-qa = ["flake8 (==3.7.9)"]
-testing = ["Django (<3.1)", "colorama", "docopt", "pytest (>=3.9.0,<5.0.0)"]
+qa = ["flake8 (==3.8.3)", "mypy (==0.782)"]
+testing = ["Django (<3.1)", "colorama", "docopt", "pytest (<6.0.0)"]
 
 [[package]]
 name = "jinja2"
 version = "2.11.2"
 description = "A very fast and expressive template engine."
-category = "dev"
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
 
@@ -444,8 +437,8 @@ i18n = ["Babel (>=0.8)"]
 
 [[package]]
 name = "joblib"
-version = "0.17.0"
-description = "Lightweight pipelining: using Python functions as pipeline jobs."
+version = "1.0.0"
+description = "Lightweight pipelining with Python functions"
 category = "dev"
 optional = false
 python-versions = ">=3.6"
@@ -454,7 +447,7 @@ python-versions = ">=3.6"
 name = "livereload"
 version = "2.6.3"
 description = "Python LiveReload is an awesome tool for web developers"
-category = "dev"
+category = "main"
 optional = false
 python-versions = "*"
 
@@ -529,7 +522,7 @@ markdown = "*"
 name = "markupsafe"
 version = "1.1.1"
 description = "Safely add untrusted strings to HTML/XML markup."
-category = "dev"
+category = "main"
 optional = false
 python-versions = ">=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*"
 
@@ -568,7 +561,7 @@ tornado = ">=5.0"
 
 [[package]]
 name = "mkdocs-material"
-version = "6.1.7"
+version = "6.2.4"
 description = "A Material Design theme for MkDocs"
 category = "dev"
 optional = false
@@ -656,9 +649,9 @@ python-versions = "*"
 
 [[package]]
 name = "packaging"
-version = "20.7"
+version = "20.8"
 description = "Core utilities for Python packages"
-category = "dev"
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
 
@@ -667,14 +660,15 @@ pyparsing = ">=2.0.2"
 
 [[package]]
 name = "parso"
-version = "0.7.1"
+version = "0.8.1"
 description = "A Python Parser"
 category = "dev"
 optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
+python-versions = ">=3.6"
 
 [package.extras]
-testing = ["docopt", "pytest (>=3.0.7)"]
+qa = ["flake8 (==3.8.3)", "mypy (==0.782)"]
+testing = ["docopt", "pytest (<6.0.0)"]
 
 [[package]]
 name = "pathspec"
@@ -719,7 +713,7 @@ dev = ["pre-commit", "tox"]
 
 [[package]]
 name = "pre-commit"
-version = "2.9.2"
+version = "2.9.3"
 description = "A framework for managing and maintaining multi-language pre-commit hooks."
 category = "dev"
 optional = false
@@ -736,7 +730,7 @@ virtualenv = ">=20.0.8"
 
 [[package]]
 name = "prompt-toolkit"
-version = "3.0.8"
+version = "3.0.10"
 description = "Library for building powerful interactive command lines in Python"
 category = "dev"
 optional = false
@@ -747,7 +741,7 @@ wcwidth = "*"
 
 [[package]]
 name = "ptyprocess"
-version = "0.6.0"
+version = "0.7.0"
 description = "Run a subprocess in a pseudo terminal"
 category = "dev"
 optional = false
@@ -755,7 +749,7 @@ python-versions = "*"
 
 [[package]]
 name = "py"
-version = "1.9.0"
+version = "1.10.0"
 description = "library with cross-python path, ini-parsing, io, code, log facilities"
 category = "dev"
 optional = false
@@ -792,19 +786,19 @@ python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
 
 [[package]]
 name = "pygments"
-version = "2.7.3"
+version = "2.7.4"
 description = "Pygments is a syntax highlighting package written in Python."
-category = "dev"
+category = "main"
 optional = false
 python-versions = ">=3.5"
 
 [[package]]
 name = "pymdown-extensions"
-version = "8.0.1"
+version = "8.1"
 description = "Extension pack for Python Markdown."
 category = "dev"
 optional = false
-python-versions = ">=3.5"
+python-versions = ">=3.6"
 
 [package.dependencies]
 Markdown = ">=3.2"
@@ -813,31 +807,30 @@ Markdown = ">=3.2"
 name = "pyparsing"
 version = "2.4.7"
 description = "Python parsing module"
-category = "dev"
+category = "main"
 optional = false
 python-versions = ">=2.6, !=3.0.*, !=3.1.*, !=3.2.*"
 
 [[package]]
 name = "pytest"
-version = "6.1.2"
+version = "6.2.1"
 description = "pytest: simple powerful testing with Python"
 category = "dev"
 optional = false
-python-versions = ">=3.5"
+python-versions = ">=3.6"
 
 [package.dependencies]
 atomicwrites = {version = ">=1.0", markers = "sys_platform == \"win32\""}
-attrs = ">=17.4.0"
+attrs = ">=19.2.0"
 colorama = {version = "*", markers = "sys_platform == \"win32\""}
 importlib-metadata = {version = ">=0.12", markers = "python_version < \"3.8\""}
 iniconfig = "*"
 packaging = "*"
-pluggy = ">=0.12,<1.0"
+pluggy = ">=0.12,<1.0.0a1"
 py = ">=1.8.2"
 toml = "*"
 
 [package.extras]
-checkqa_mypy = ["mypy (==0.780)"]
 testing = ["argcomplete", "hypothesis (>=3.56)", "mock", "nose", "requests", "xmlschema"]
 
 [[package]]
@@ -871,7 +864,7 @@ testing = ["fields", "hunter", "process-tests (==2.0.2)", "six", "pytest-xdist",
 
 [[package]]
 name = "pytest-html"
-version = "3.1.0"
+version = "3.1.1"
 description = "pytest plugin for generating HTML reports"
 category = "dev"
 optional = false
@@ -894,7 +887,7 @@ pytest = ">=2.9.0"
 
 [[package]]
 name = "pytest-mock"
-version = "3.3.1"
+version = "3.5.1"
 description = "Thin-wrapper around the mock package for easier use with pytest"
 category = "dev"
 optional = false
@@ -942,7 +935,7 @@ trio = ["trio (>=0.16.0)"]
 
 [[package]]
 name = "pytz"
-version = "2020.4"
+version = "2020.5"
 description = "World timezone definitions, modern and historical"
 category = "main"
 optional = false
@@ -966,27 +959,21 @@ python-versions = "*"
 
 [[package]]
 name = "requests"
-version = "2.25.0"
+version = "2.15.1"
 description = "Python HTTP for Humans."
-category = "dev"
-optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-
-[package.dependencies]
-certifi = ">=2017.4.17"
-chardet = ">=3.0.2,<4"
-idna = ">=2.5,<3"
-urllib3 = ">=1.21.1,<1.27"
+category = "main"
+optional = true
+python-versions = "*"
 
 [package.extras]
-security = ["pyOpenSSL (>=0.14)", "cryptography (>=1.3.4)"]
+security = ["cryptography (>=1.3.4)", "idna (>=2.0.0)", "pyOpenSSL (>=0.14)"]
 socks = ["PySocks (>=1.5.6,!=1.5.7)", "win-inet-pton"]
 
 [[package]]
 name = "six"
 version = "1.15.0"
 description = "Python 2 and 3 compatibility utilities"
-category = "dev"
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*"
 
@@ -994,24 +981,24 @@ python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*"
 name = "snowballstemmer"
 version = "2.0.0"
 description = "This package provides 26 stemmers for 25 languages generated from Snowball algorithms."
-category = "dev"
-optional = false
+category = "main"
+optional = true
 python-versions = "*"
 
 [[package]]
 name = "soupsieve"
-version = "2.0.1"
+version = "2.1"
 description = "A modern CSS selector implementation for Beautiful Soup."
-category = "dev"
-optional = false
+category = "main"
+optional = true
 python-versions = ">=3.5"
 
 [[package]]
 name = "sphinx"
-version = "3.3.1"
+version = "3.4.3"
 description = "Python documentation generator"
-category = "dev"
-optional = false
+category = "main"
+optional = true
 python-versions = ">=3.5"
 
 [package.dependencies]
@@ -1034,15 +1021,15 @@ sphinxcontrib-serializinghtml = "*"
 
 [package.extras]
 docs = ["sphinxcontrib-websupport"]
-lint = ["flake8 (>=3.5.0)", "flake8-import-order", "mypy (>=0.790)", "docutils-stubs"]
-test = ["pytest", "pytest-cov", "html5lib", "typed-ast", "cython"]
+lint = ["flake8 (>=3.5.0)", "isort", "mypy (>=0.790)", "docutils-stubs"]
+test = ["pytest", "pytest-cov", "html5lib", "cython", "typed-ast"]
 
 [[package]]
 name = "sphinx-autobuild"
 version = "2020.9.1"
 description = "Rebuild Sphinx documentation on changes, with live-reload in the browser."
-category = "dev"
-optional = false
+category = "main"
+optional = true
 python-versions = ">=3.6"
 
 [package.dependencies]
@@ -1056,8 +1043,8 @@ test = ["pytest", "pytest-cov"]
 name = "sphinx-copybutton"
 version = "0.3.1"
 description = "Add a copy button to each of your code cells."
-category = "dev"
-optional = false
+category = "main"
+optional = true
 python-versions = "*"
 
 [package.dependencies]
@@ -1070,8 +1057,8 @@ code_style = ["flake8 (>=3.7.0,<3.8.0)", "black", "pre-commit (==1.17.0)"]
 name = "sphinx-intl"
 version = "2.0.1"
 description = "Sphinx utility that make it easy to translate and to apply translation."
-category = "dev"
-optional = false
+category = "main"
+optional = true
 python-versions = ">=3.5"
 
 [package.dependencies]
@@ -1087,8 +1074,8 @@ transifex = ["transifex_client (>=0.11)"]
 name = "sphinx-prompt"
 version = "1.3.0"
 description = "Sphinx directive to add unselectable prompt"
-category = "dev"
-optional = false
+category = "main"
+optional = true
 python-versions = "*"
 
 [package.dependencies]
@@ -1099,8 +1086,8 @@ Sphinx = "*"
 name = "sphinx-substitution-extensions"
 version = "2020.9.30.0"
 description = "Extensions for Sphinx which allow for substitutions."
-category = "dev"
-optional = false
+category = "main"
+optional = true
 python-versions = "*"
 
 [package.dependencies]
@@ -1115,8 +1102,8 @@ dev = ["autoflake (==1.4)", "black (==20.8b1)", "check-manifest (==0.43)", "doc8
 name = "sphinxcontrib-applehelp"
 version = "1.0.2"
 description = "sphinxcontrib-applehelp is a sphinx extension which outputs Apple help books"
-category = "dev"
-optional = false
+category = "main"
+optional = true
 python-versions = ">=3.5"
 
 [package.extras]
@@ -1127,8 +1114,8 @@ test = ["pytest"]
 name = "sphinxcontrib-devhelp"
 version = "1.0.2"
 description = "sphinxcontrib-devhelp is a sphinx extension which outputs Devhelp document."
-category = "dev"
-optional = false
+category = "main"
+optional = true
 python-versions = ">=3.5"
 
 [package.extras]
@@ -1139,8 +1126,8 @@ test = ["pytest"]
 name = "sphinxcontrib-htmlhelp"
 version = "1.0.3"
 description = "sphinxcontrib-htmlhelp is a sphinx extension which renders HTML help files"
-category = "dev"
-optional = false
+category = "main"
+optional = true
 python-versions = ">=3.5"
 
 [package.extras]
@@ -1151,8 +1138,8 @@ test = ["pytest", "html5lib"]
 name = "sphinxcontrib-jsmath"
 version = "1.0.1"
 description = "A sphinx extension which renders display math in HTML via JavaScript"
-category = "dev"
-optional = false
+category = "main"
+optional = true
 python-versions = ">=3.5"
 
 [package.extras]
@@ -1162,8 +1149,8 @@ test = ["pytest", "flake8", "mypy"]
 name = "sphinxcontrib-qthelp"
 version = "1.0.3"
 description = "sphinxcontrib-qthelp is a sphinx extension which outputs QtHelp document."
-category = "dev"
-optional = false
+category = "main"
+optional = true
 python-versions = ">=3.5"
 
 [package.extras]
@@ -1174,8 +1161,8 @@ test = ["pytest"]
 name = "sphinxcontrib-serializinghtml"
 version = "1.1.4"
 description = "sphinxcontrib-serializinghtml is a sphinx extension which outputs \"serialized\" HTML files (json and pickle)."
-category = "dev"
-optional = false
+category = "main"
+optional = true
 python-versions = ">=3.5"
 
 [package.extras]
@@ -1194,20 +1181,21 @@ python-versions = ">=2.6, !=3.0.*, !=3.1.*, !=3.2.*"
 name = "tornado"
 version = "6.1"
 description = "Tornado is a Python web framework and asynchronous networking library, originally developed at FriendFeed."
-category = "dev"
+category = "main"
 optional = false
 python-versions = ">= 3.5"
 
 [[package]]
 name = "tqdm"
-version = "4.54.1"
+version = "4.56.0"
 description = "Fast, Extensible Progress Meter"
 category = "dev"
 optional = false
 python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,>=2.7"
 
 [package.extras]
-dev = ["py-make (>=0.1.0)", "twine", "argopt", "pydoc-markdown", "wheel"]
+dev = ["py-make (>=0.1.0)", "twine", "wheel"]
+telegram = ["requests"]
 
 [[package]]
 name = "traitlets"
@@ -1225,7 +1213,7 @@ test = ["pytest"]
 
 [[package]]
 name = "typed-ast"
-version = "1.4.1"
+version = "1.4.2"
 description = "a fork of Python 2 and 3 ast modules with type comment support"
 category = "dev"
 optional = false
@@ -1239,19 +1227,6 @@ category = "main"
 optional = false
 python-versions = "*"
 
-[[package]]
-name = "urllib3"
-version = "1.26.2"
-description = "HTTP library with thread-safe connection pooling, file post, and more."
-category = "dev"
-optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*, <4"
-
-[package.extras]
-brotli = ["brotlipy (>=0.6.0)"]
-secure = ["pyOpenSSL (>=0.14)", "cryptography (>=1.3.4)", "idna (>=2.0.0)", "certifi", "ipaddress"]
-socks = ["PySocks (>=1.5.6,!=1.5.7,<2.0)"]
-
 [[package]]
 name = "uvloop"
 version = "0.14.0"
@@ -1262,7 +1237,7 @@ python-versions = "*"
 
 [[package]]
 name = "virtualenv"
-version = "20.2.1"
+version = "20.3.0"
 description = "Virtual Python Environment builder"
 category = "dev"
 optional = false
@@ -1277,7 +1252,7 @@ six = ">=1.9.0,<2"
 
 [package.extras]
 docs = ["proselint (>=0.10.2)", "sphinx (>=3)", "sphinx-argparse (>=0.2.5)", "sphinx-rtd-theme (>=0.4.3)", "towncrier (>=19.9.0rc1)"]
-testing = ["coverage (>=4)", "coverage-enable-subprocess (>=1)", "flaky (>=3)", "pytest (>=4)", "pytest-env (>=0.6.2)", "pytest-freezegun (>=0.4.1)", "pytest-mock (>=2)", "pytest-randomly (>=1)", "pytest-timeout (>=1)", "pytest-xdist (>=1.31.0)", "packaging (>=20.0)", "xonsh (>=0.9.16)"]
+testing = ["coverage (>=4)", "coverage-enable-subprocess (>=1)", "flaky (>=3)", "pytest (>=4)", "pytest-env (>=0.6.2)", "pytest-freezegun (>=0.4.1)", "pytest-mock (>=2)", "pytest-randomly (>=1)", "pytest-timeout (>=1)", "packaging (>=20.0)", "xonsh (>=0.9.16)"]
 
 [[package]]
 name = "wcwidth"
@@ -1313,13 +1288,14 @@ docs = ["sphinx", "jaraco.packaging (>=3.2)", "rst.linker (>=1.9)"]
 testing = ["pytest (>=3.5,!=3.7.3)", "pytest-checkdocs (>=1.2.3)", "pytest-flake8", "pytest-cov", "jaraco.test (>=3.2.0)", "jaraco.itertools", "func-timeout", "pytest-black (>=0.3.7)", "pytest-mypy"]
 
 [extras]
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@@ -2018,54 +2005,50 @@ tornado = [
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 ]
-urllib3 = [
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-    {file = "urllib3-1.26.2.tar.gz", hash = "sha256:19188f96923873c92ccb987120ec4acaa12f0461fa9ce5d3d0772bc965a39e08"},
-]
 uvloop = [
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     {file = "uvloop-0.14.0-cp35-cp35m-manylinux2010_x86_64.whl", hash = "sha256:4544dcf77d74f3a84f03dd6278174575c44c67d7165d4c42c71db3fdc3860726"},
@@ -2078,8 +2061,8 @@ uvloop = [
     {file = "uvloop-0.14.0.tar.gz", hash = "sha256:123ac9c0c7dd71464f58f1b4ee0bbd81285d96cdda8bc3519281b8973e3a461e"},
 ]
 virtualenv = [
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-    {file = "virtualenv-20.2.1.tar.gz", hash = "sha256:e0aac7525e880a429764cefd3aaaff54afb5d9f25c82627563603f5d7de5a6e5"},
+    {file = "virtualenv-20.3.0-py2.py3-none-any.whl", hash = "sha256:205a7577275dd0d9223c730dd498e21a8910600085c3dee97412b041fc4b853b"},
+    {file = "virtualenv-20.3.0.tar.gz", hash = "sha256:7992b8de87e544a4ab55afc2240bf8388c4e3b5765d03784dad384bfdf9097ee"},
 ]
 wcwidth = [
     {file = "wcwidth-0.2.5-py2.py3-none-any.whl", hash = "sha256:beb4802a9cebb9144e99086eff703a642a13d6a0052920003a230f3294bbe784"},
diff --git a/pyproject.toml b/pyproject.toml
index 94d3ee55..f58d41f4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -9,26 +9,26 @@ homepage = "https://aiogram.dev/"
 documentation = "https://docs.aiogram.dev/"
 repository = "https://github.com/aiogram/aiogram/"
 keywords = [
-	"telegram",
-	"bot",
-	"api",
-	"framework",
-	"wrapper",
-	"asyncio",
+    "telegram",
+    "bot",
+    "api",
+    "framework",
+    "wrapper",
+    "asyncio",
 ]
 classifiers = [
-  "Development Status :: 3 - Alpha",
-  "Environment :: Console",
-  "Framework :: AsyncIO",
-  "Intended Audience :: Developers",
-  "Intended Audience :: System Administrators",
-  "License :: OSI Approved :: MIT License",
-  "Programming Language :: Python :: 3.7",
-  "Programming Language :: Python :: 3.8",
-  "Programming Language :: Python :: 3.9",
-  "Topic :: Software Development :: Libraries :: Application Frameworks",
-  "Framework :: AsyncIO",
-  "Typing :: Typed",
+    "Development Status :: 3 - Alpha",
+    "Environment :: Console",
+    "Framework :: AsyncIO",
+    "Intended Audience :: Developers",
+    "Intended Audience :: System Administrators",
+    "License :: OSI Approved :: MIT License",
+    "Programming Language :: Python :: 3.7",
+    "Programming Language :: Python :: 3.8",
+    "Programming Language :: Python :: 3.9",
+    "Topic :: Software Development :: Libraries :: Application Frameworks",
+    "Framework :: AsyncIO",
+    "Typing :: Typed",
 ]
 
 [tool.poetry.dependencies]
@@ -37,14 +37,21 @@ aiohttp = "^3.6"
 pydantic = "^1.5"
 Babel = "^2.7"
 aiofiles = "^0.6.0"
-uvloop = {version = "^0.14.0", markers = "sys_platform == 'darwin' or sys_platform == 'linux'", optional = true}
+uvloop = { version = "^0.14.0", markers = "sys_platform == 'darwin' or sys_platform == 'linux'", optional = true }
 async_lru = "^1.0"
-aiohttp-socks = {version = "^0.5.5", optional = true}
-typing-extensions = {version = "^3.7.4", python = "<3.8"}
+aiohttp-socks = { version = "^0.5.5", optional = true }
+typing-extensions = { version = "^3.7.4", python = "<3.8" }
 magic-filter = "^0.1.2"
+sphinx = { version = "^3.1.0", optional = true }
+sphinx-intl = { version = "^2.0.1", optional = true }
+sphinx-autobuild = { version = "^2020.9.1", optional = true }
+sphinx-copybutton = { version = "^0.3.1", optional = true }
+furo = { version = "^2020.11.15-beta.17", optional = true }
+sphinx-prompt = { version = "^1.3.0", optional = true }
+Sphinx-Substitution-Extensions = { version = "^2020.9.30", optional = true }
 
 [tool.poetry.dev-dependencies]
-uvloop = {version = "^0.14.0", markers = "sys_platform == 'darwin' or sys_platform == 'linux'"}
+uvloop = { version = "^0.14.0", markers = "sys_platform == 'darwin' or sys_platform == 'linux'" }
 pytest = "^6.1"
 pytest-html = "^3.1"
 pytest-asyncio = "^0.14.0"
@@ -52,7 +59,7 @@ pytest-mypy = "^0.8"
 pytest-mock = "^3.3"
 pytest-cov = "^2.8"
 aresponses = "^2.0"
-asynctest = {version = "^0.13.0", python = "<3.8"}
+asynctest = { version = "^0.13.0", python = "<3.8" }
 isort = "^5.6"
 flake8 = "^3.7"
 flake8-html = "^0.4.0"
@@ -74,13 +81,23 @@ sphinx-intl = "^2.0.1"
 sphinx-autobuild = "^2020.9.1"
 sphinx-copybutton = "^0.3.1"
 furo = "^2020.11.15-beta.17"
-black = "^20.8b1"
 sphinx-prompt = "^1.3.0"
 Sphinx-Substitution-Extensions = "^2020.9.30"
+black = "^20.8b1"
 
 [tool.poetry.extras]
 fast = ["uvloop"]
 proxy = ["aiohttp-socks"]
+docs = [
+    "sphinx",
+    "sphinx-intl",
+    "sphinx-autobuild",
+    "sphinx-copybutton",
+    "furo",
+    "black",
+    "sphinx-prompt",
+    "Sphinx-Substitution-Extensions",
+]
 
 [tool.black]
 line-length = 99