diff --git a/docs/requirements.txt b/docs/requirements.txt
index 93d73c8..2e0d739 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,2 +1,2 @@
-mkdocs==1.1.2; python_version >= "3.5"
+mkdocs==1.3.1; python_version >= "3.6"
 pygments==2.7.4; python_version >= "3.5"
diff --git a/poetry.lock b/poetry.lock
index 65a5b23..fb3538e 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -194,12 +194,18 @@ python-dateutil = ">=1.0,<2.0 || >2.0"
 six = "*"
 
 [[package]]
-name = "future"
-version = "0.18.2"
-description = "Clean single-source support for Python 3 and 2"
+name = "ghp-import"
+version = "2.1.0"
+description = "Copy your docs directly to the gh-pages branch."
 category = "dev"
 optional = false
-python-versions = ">=2.6, !=3.0.*, !=3.1.*, !=3.2.*"
+python-versions = "*"
+
+[package.dependencies]
+python-dateutil = ">=2.8.1"
+
+[package.extras]
+dev = ["wheel", "flake8", "markdown", "twine"]
 
 [[package]]
 name = "idna"
@@ -211,18 +217,20 @@ python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
 
 [[package]]
 name = "importlib-metadata"
-version = "1.6.0"
+version = "4.12.0"
 description = "Read metadata from Python packages"
 category = "dev"
 optional = false
-python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,>=2.7"
+python-versions = ">=3.7"
 
 [package.dependencies]
+typing-extensions = {version = ">=3.6.4", markers = "python_version < \"3.8\""}
 zipp = ">=0.5"
 
 [package.extras]
-testing = ["importlib-resources", "packaging"]
-docs = ["rst.linker", "sphinx"]
+docs = ["sphinx", "jaraco.packaging (>=9)", "rst.linker (>=1.9)"]
+perf = ["ipython"]
+testing = ["pytest (>=6)", "pytest-checkdocs (>=2.4)", "pytest-flake8", "pytest-cov", "pytest-enabler (>=1.3)", "packaging", "pyfakefs", "flufl.flake8", "pytest-perf (>=0.9.2)", "pytest-black (>=0.3.7)", "pytest-mypy (>=0.9.1)", "importlib-resources (>=1.3)"]
 
 [[package]]
 name = "ipython"
@@ -305,14 +313,6 @@ MarkupSafe = ">=0.23"
 [package.extras]
 i18n = ["Babel (>=0.8)"]
 
-[[package]]
-name = "joblib"
-version = "0.15.1"
-description = "Lightweight pipelining: using Python functions as pipeline jobs."
-category = "dev"
-optional = false
-python-versions = ">=3.6"
-
 [[package]]
 name = "lazy-object-proxy"
 version = "1.4.3"
@@ -321,34 +321,6 @@ category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
 
-[[package]]
-name = "livereload"
-version = "2.6.1"
-description = "Python LiveReload is an awesome tool for web developers"
-category = "dev"
-optional = false
-python-versions = "*"
-
-[package.dependencies]
-six = "*"
-tornado = "*"
-
-[[package]]
-name = "lunr"
-version = "0.5.8"
-description = "A Python implementation of Lunr.js"
-category = "dev"
-optional = false
-python-versions = "*"
-
-[package.dependencies]
-future = ">=0.16.0"
-nltk = {version = ">=3.2.5", optional = true, markers = "python_version > \"2.7\" and extra == \"languages\""}
-six = ">=1.11.0"
-
-[package.extras]
-languages = ["nltk (>=3.2.5)", "nltk (>=3.2.5,<3.5)"]
-
 [[package]]
 name = "macfsevents"
 version = "0.8.1"
@@ -387,6 +359,14 @@ category = "dev"
 optional = false
 python-versions = "*"
 
+[[package]]
+name = "mergedeep"
+version = "1.3.4"
+description = "A deep merge function for 🐍."
+category = "dev"
+optional = false
+python-versions = ">=3.6"
+
 [[package]]
 name = "minilog"
 version = "0.3.1"
@@ -397,20 +377,26 @@ python-versions = "*"
 
 [[package]]
 name = "mkdocs"
-version = "1.1.2"
+version = "1.3.1"
 description = "Project documentation with Markdown."
 category = "dev"
 optional = false
-python-versions = ">=3.5"
+python-versions = ">=3.6"
 
 [package.dependencies]
 click = ">=3.3"
-Jinja2 = ">=2.10.1"
-livereload = ">=2.5.1"
-lunr = {version = "0.5.8", extras = ["languages"]}
-Markdown = ">=3.2.1"
+ghp-import = ">=1.0"
+importlib-metadata = ">=4.3"
+Jinja2 = ">=2.10.2"
+Markdown = ">=3.2.1,<3.4"
+mergedeep = ">=1.3.4"
+packaging = ">=20.5"
 PyYAML = ">=3.10"
-tornado = ">=5.0"
+pyyaml-env-tag = ">=0.1"
+watchdog = ">=2.0"
+
+[package.extras]
+i18n = ["babel (>=2.9.0)"]
 
 [[package]]
 name = "more-itertools"
@@ -444,28 +430,6 @@ category = "dev"
 optional = false
 python-versions = "*"
 
-[[package]]
-name = "nltk"
-version = "3.5"
-description = "Natural Language Toolkit"
-category = "dev"
-optional = false
-python-versions = "*"
-
-[package.dependencies]
-click = "*"
-joblib = "*"
-regex = "*"
-tqdm = "*"
-
-[package.extras]
-all = ["requests", "numpy", "python-crfsuite", "scikit-learn", "twython", "pyparsing", "scipy", "matplotlib", "gensim"]
-corenlp = ["requests"]
-machine_learning = ["gensim", "numpy", "python-crfsuite", "scikit-learn", "scipy"]
-plot = ["matplotlib"]
-tgrep = ["pyparsing"]
-twitter = ["twython"]
-
 [[package]]
 name = "nose"
 version = "1.3.7"
@@ -476,15 +440,14 @@ python-versions = "*"
 
 [[package]]
 name = "packaging"
-version = "20.3"
+version = "21.3"
 description = "Core utilities for Python packages"
 category = "dev"
 optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
+python-versions = ">=3.6"
 
 [package.dependencies]
-pyparsing = ">=2.0.2"
-six = "*"
+pyparsing = ">=2.0.2,<3.0.5 || >3.0.5"
 
 [[package]]
 name = "parse"
@@ -752,6 +715,17 @@ category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
 
+[[package]]
+name = "pyyaml-env-tag"
+version = "0.1"
+description = "A custom YAML tag for referencing environment variables in YAML files. "
+category = "dev"
+optional = false
+python-versions = ">=3.6"
+
+[package.dependencies]
+pyyaml = "*"
+
 [[package]]
 name = "regex"
 version = "2020.5.14"
@@ -829,25 +803,6 @@ category = "dev"
 optional = false
 python-versions = "*"
 
-[[package]]
-name = "tornado"
-version = "6.0.4"
-description = "Tornado is a Python web framework and asynchronous networking library, originally developed at FriendFeed."
-category = "dev"
-optional = false
-python-versions = ">= 3.5"
-
-[[package]]
-name = "tqdm"
-version = "4.46.0"
-description = "Fast, Extensible Progress Meter"
-category = "dev"
-optional = false
-python-versions = ">=2.6, !=3.0.*, !=3.1.*"
-
-[package.extras]
-dev = ["pydoc-markdown", "argopt", "twine", "py-make (>=0.1.0)"]
-
 [[package]]
 name = "traitlets"
 version = "4.3.3"
@@ -901,6 +856,17 @@ socks = ["PySocks (>=1.5.6,!=1.5.7,<2.0)"]
 secure = ["ipaddress", "certifi", "idna (>=2.0.0)", "cryptography (>=1.3.4)", "pyOpenSSL (>=0.14)"]
 brotli = ["brotlipy (>=0.6.0)"]
 
+[[package]]
+name = "watchdog"
+version = "2.1.9"
+description = "Filesystem events monitoring"
+category = "dev"
+optional = false
+python-versions = ">=3.6"
+
+[package.extras]
+watchmedo = ["PyYAML (>=3.10)"]
+
 [[package]]
 name = "wcwidth"
 version = "0.1.9"
@@ -946,7 +912,7 @@ docs = ["rst.linker (>=1.9)", "jaraco.packaging (>=3.2)", "sphinx"]
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.7"
-content-hash = "9d8216cd219f3a9e89774e7ddaca49391ae41a8ed05524517c61ecb630e60014"
+content-hash = "c516176646c8ab40f72867e31abcf16d0e83860578b3a733e5b1938754e03a33"
 
 [metadata.files]
 altgraph = [
@@ -1053,16 +1019,17 @@ freezegun = [
     {file = "freezegun-0.3.15-py2.py3-none-any.whl", hash = "sha256:82c757a05b7c7ca3e176bfebd7d6779fd9139c7cb4ef969c38a28d74deef89b2"},
     {file = "freezegun-0.3.15.tar.gz", hash = "sha256:e2062f2c7f95cc276a834c22f1a17179467176b624cc6f936e8bc3be5535ad1b"},
 ]
-future = [
-    {file = "future-0.18.2.tar.gz", hash = "sha256:b1bead90b70cf6ec3f0710ae53a525360fa360d306a86583adc6bf83a4db537d"},
+ghp-import = [
+    {file = "ghp-import-2.1.0.tar.gz", hash = "sha256:9c535c4c61193c2df8871222567d7fd7e5014d835f97dc7b7439069e2413d343"},
+    {file = "ghp_import-2.1.0-py3-none-any.whl", hash = "sha256:8337dd7b50877f163d4c0289bc1f1c7f127550241988d568c1db512c4324a619"},
 ]
 idna = [
     {file = "idna-2.9-py2.py3-none-any.whl", hash = "sha256:a068a21ceac8a4d63dbfd964670474107f541babbd2250d61922f029858365fa"},
     {file = "idna-2.9.tar.gz", hash = "sha256:7588d1c14ae4c77d74036e8c22ff447b26d0fde8f007354fd48a7814db15b7cb"},
 ]
 importlib-metadata = [
-    {file = "importlib_metadata-1.6.0-py2.py3-none-any.whl", hash = "sha256:2a688cbaa90e0cc587f1df48bdc97a6eadccdcd9c35fb3f976a09e3b5016d90f"},
-    {file = "importlib_metadata-1.6.0.tar.gz", hash = "sha256:34513a8a0c4962bc66d35b359558fd8a5e10cd472d37aec5f66858addef32c1e"},
+    {file = "importlib_metadata-4.12.0-py3-none-any.whl", hash = "sha256:7401a975809ea1fdc658c3aa4f78cc2195a0e019c5cbc4c06122884e9ae80c23"},
+    {file = "importlib_metadata-4.12.0.tar.gz", hash = "sha256:637245b8bab2b6502fcbc752cc4b7a6f6243bb02b31c5c26156ad103d3d45670"},
 ]
 ipython = [
     {file = "ipython-7.14.0-py3-none-any.whl", hash = "sha256:5b241b84bbf0eb085d43ae9d46adf38a13b45929ca7774a740990c2c242534bb"},
@@ -1084,10 +1051,6 @@ jinja2 = [
     {file = "Jinja2-2.11.3-py2.py3-none-any.whl", hash = "sha256:03e47ad063331dd6a3f04a43eddca8a966a26ba0c5b7207a9a9e4e08f1b29419"},
     {file = "Jinja2-2.11.3.tar.gz", hash = "sha256:a6d58433de0ae800347cab1fa3043cebbabe8baa9d29e668f1c768cb87a333c6"},
 ]
-joblib = [
-    {file = "joblib-0.15.1-py3-none-any.whl", hash = "sha256:6825784ffda353cc8a1be573118085789e5b5d29401856b35b756645ab5aecb5"},
-    {file = "joblib-0.15.1.tar.gz", hash = "sha256:61e49189c84b3c5d99a969d314853f4d1d263316cc694bec17548ebaa9c47b6e"},
-]
 lazy-object-proxy = [
     {file = "lazy-object-proxy-1.4.3.tar.gz", hash = "sha256:f3900e8a5de27447acbf900b4750b0ddfd7ec1ea7fbaf11dfa911141bc522af0"},
     {file = "lazy_object_proxy-1.4.3-cp27-cp27m-macosx_10_13_x86_64.whl", hash = "sha256:a2238e9d1bb71a56cd710611a1614d1194dc10a175c1e08d75e1a7bcc250d442"},
@@ -1111,14 +1074,6 @@ lazy-object-proxy = [
     {file = "lazy_object_proxy-1.4.3-cp38-cp38-win32.whl", hash = "sha256:5541cada25cd173702dbd99f8e22434105456314462326f06dba3e180f203dfd"},
     {file = "lazy_object_proxy-1.4.3-cp38-cp38-win_amd64.whl", hash = "sha256:59f79fef100b09564bc2df42ea2d8d21a64fdcda64979c0fa3db7bdaabaf6239"},
 ]
-livereload = [
-    {file = "livereload-2.6.1-py2.py3-none-any.whl", hash = "sha256:78d55f2c268a8823ba499305dcac64e28ddeb9a92571e12d543cd304faf5817b"},
-    {file = "livereload-2.6.1.tar.gz", hash = "sha256:89254f78d7529d7ea0a3417d224c34287ebfe266b05e67e51facaf82c27f0f66"},
-]
-lunr = [
-    {file = "lunr-0.5.8-py2.py3-none-any.whl", hash = "sha256:aab3f489c4d4fab4c1294a257a30fec397db56f0a50273218ccc3efdbf01d6ca"},
-    {file = "lunr-0.5.8.tar.gz", hash = "sha256:c4fb063b98eff775dd638b3df380008ae85e6cb1d1a24d1cd81a10ef6391c26e"},
-]
 macfsevents = [
     {file = "MacFSEvents-0.8.1.tar.gz", hash = "sha256:1324b66b356051de662ba87d84f73ada062acd42b047ed1246e60a449f833e10"},
 ]
@@ -1184,13 +1139,17 @@ mccabe = [
     {file = "mccabe-0.6.1-py2.py3-none-any.whl", hash = "sha256:ab8a6258860da4b6677da4bd2fe5dc2c659cff31b3ee4f7f5d64e79735b80d42"},
     {file = "mccabe-0.6.1.tar.gz", hash = "sha256:dd8d182285a0fe56bace7f45b5e7d1a6ebcbf524e8f3bd87eb0f125271b8831f"},
 ]
+mergedeep = [
+    {file = "mergedeep-1.3.4-py3-none-any.whl", hash = "sha256:70775750742b25c0d8f36c55aed03d24c3384d17c951b3175d898bd778ef0307"},
+    {file = "mergedeep-1.3.4.tar.gz", hash = "sha256:0096d52e9dad9939c3d975a774666af186eda617e6ca84df4c94dec30004f2a8"},
+]
 minilog = [
     {file = "minilog-0.3.1-py3-none-any.whl", hash = "sha256:e617c3676f2861a2d5020e65e4ae956567dd241ce0b5c8de50a8a40b94e177bc"},
     {file = "minilog-0.3.1.tar.gz", hash = "sha256:a5a533fe0e31a49a766fbb29f16dee0e9c659bbe81cde8147ff67f7304c558df"},
 ]
 mkdocs = [
-    {file = "mkdocs-1.1.2-py3-none-any.whl", hash = "sha256:096f52ff52c02c7e90332d2e53da862fde5c062086e1b5356a6e392d5d60f5e9"},
-    {file = "mkdocs-1.1.2.tar.gz", hash = "sha256:f0b61e5402b99d7789efa032c7a74c90a20220a9c81749da06dbfbcbd52ffb39"},
+    {file = "mkdocs-1.3.1-py3-none-any.whl", hash = "sha256:fda92466393127d2da830bc6edc3a625a14b436316d1caf347690648e774c4f0"},
+    {file = "mkdocs-1.3.1.tar.gz", hash = "sha256:a41a2ff25ce3bbacc953f9844ba07d106233cd76c88bac1f59cb1564ac0d87ed"},
 ]
 more-itertools = [
     {file = "more-itertools-8.3.0.tar.gz", hash = "sha256:558bb897a2232f5e4f8e2399089e35aecb746e1f9191b6584a151647e89267be"},
@@ -1224,17 +1183,14 @@ mypy-extensions = [
     {file = "mypy_extensions-0.4.3-py2.py3-none-any.whl", hash = "sha256:090fedd75945a69ae91ce1303b5824f428daf5a028d2f6ab8a299250a846f15d"},
     {file = "mypy_extensions-0.4.3.tar.gz", hash = "sha256:2d82818f5bb3e369420cb3c4060a7970edba416647068eb4c5343488a6c604a8"},
 ]
-nltk = [
-    {file = "nltk-3.5.zip", hash = "sha256:845365449cd8c5f9731f7cb9f8bd6fd0767553b9d53af9eb1b3abf7700936b35"},
-]
 nose = [
     {file = "nose-1.3.7-py2-none-any.whl", hash = "sha256:dadcddc0aefbf99eea214e0f1232b94f2fa9bd98fa8353711dacb112bfcbbb2a"},
     {file = "nose-1.3.7-py3-none-any.whl", hash = "sha256:9ff7c6cc443f8c51994b34a667bbcf45afd6d945be7477b52e97516fd17c53ac"},
     {file = "nose-1.3.7.tar.gz", hash = "sha256:f1bffef9cbc82628f6e7d7b40d7e255aefaa1adb6a1b1d26c69a8b79e6208a98"},
 ]
 packaging = [
-    {file = "packaging-20.3-py2.py3-none-any.whl", hash = "sha256:82f77b9bee21c1bafbf35a84905d604d5d1223801d639cf3ed140bd651c08752"},
-    {file = "packaging-20.3.tar.gz", hash = "sha256:3c292b474fda1671ec57d46d739d072bfd495a4f51ad01a055121d81e952b7a3"},
+    {file = "packaging-21.3-py3-none-any.whl", hash = "sha256:ef103e05f519cdc783ae24ea4e2e0f508a9c99b2d4969652eed6a2e1ea5bd522"},
+    {file = "packaging-21.3.tar.gz", hash = "sha256:dd47c42927d89ab911e606518907cc2d3a1f38bbd026385970643f9c5b8ecfeb"},
 ]
 parse = [
     {file = "parse-1.8.4.tar.gz", hash = "sha256:c3cdf6206f22aeebfa00e5b954fcfea13d1b2dc271c75806b6025b94fb490939"},
@@ -1357,6 +1313,10 @@ pyyaml = [
     {file = "PyYAML-5.3.1-cp39-cp39-win_amd64.whl", hash = "sha256:6034f55dab5fea9e53f436aa68fa3ace2634918e8b5994d82f3621c04ff5ed2e"},
     {file = "PyYAML-5.3.1.tar.gz", hash = "sha256:b8eac752c5e14d3eca0e6dd9199cd627518cb5ec06add0de9d32baeee6fe645d"},
 ]
+pyyaml-env-tag = [
+    {file = "pyyaml_env_tag-0.1-py3-none-any.whl", hash = "sha256:af31106dec8a4d68c60207c1886031cbf839b68aa7abccdb19868200532c2069"},
+    {file = "pyyaml_env_tag-0.1.tar.gz", hash = "sha256:70092675bda14fdec33b31ba77e7543de9ddc88f2e5b99160396572d11525bdb"},
+]
 regex = [
     {file = "regex-2020.5.14-cp27-cp27m-win32.whl", hash = "sha256:e565569fc28e3ba3e475ec344d87ed3cd8ba2d575335359749298a0899fe122e"},
     {file = "regex-2020.5.14-cp27-cp27m-win_amd64.whl", hash = "sha256:d466967ac8e45244b9dfe302bbe5e3337f8dc4dec8d7d10f5e950d83b140d33a"},
@@ -1430,21 +1390,6 @@ toml = [
     {file = "toml-0.10.1-py2.py3-none-any.whl", hash = "sha256:bda89d5935c2eac546d648028b9901107a595863cb36bae0c73ac804a9b4ce88"},
     {file = "toml-0.10.1.tar.gz", hash = "sha256:926b612be1e5ce0634a2ca03470f95169cf16f939018233a670519cb4ac58b0f"},
 ]
-tornado = [
-    {file = "tornado-6.0.4-cp35-cp35m-win32.whl", hash = "sha256:5217e601700f24e966ddab689f90b7ea4bd91ff3357c3600fa1045e26d68e55d"},
-    {file = "tornado-6.0.4-cp35-cp35m-win_amd64.whl", hash = "sha256:c98232a3ac391f5faea6821b53db8db461157baa788f5d6222a193e9456e1740"},
-    {file = "tornado-6.0.4-cp36-cp36m-win32.whl", hash = "sha256:5f6a07e62e799be5d2330e68d808c8ac41d4a259b9cea61da4101b83cb5dc673"},
-    {file = "tornado-6.0.4-cp36-cp36m-win_amd64.whl", hash = "sha256:c952975c8ba74f546ae6de2e226ab3cc3cc11ae47baf607459a6728585bb542a"},
-    {file = "tornado-6.0.4-cp37-cp37m-win32.whl", hash = "sha256:2c027eb2a393d964b22b5c154d1a23a5f8727db6fda837118a776b29e2b8ebc6"},
-    {file = "tornado-6.0.4-cp37-cp37m-win_amd64.whl", hash = "sha256:5618f72e947533832cbc3dec54e1dffc1747a5cb17d1fd91577ed14fa0dc081b"},
-    {file = "tornado-6.0.4-cp38-cp38-win32.whl", hash = "sha256:22aed82c2ea340c3771e3babc5ef220272f6fd06b5108a53b4976d0d722bcd52"},
-    {file = "tornado-6.0.4-cp38-cp38-win_amd64.whl", hash = "sha256:c58d56003daf1b616336781b26d184023ea4af13ae143d9dda65e31e534940b9"},
-    {file = "tornado-6.0.4.tar.gz", hash = "sha256:0fe2d45ba43b00a41cd73f8be321a44936dc1aba233dee979f17a042b83eb6dc"},
-]
-tqdm = [
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-]
 traitlets = [
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@@ -1494,6 +1439,33 @@ urllib3 = [
     {file = "urllib3-1.26.5-py2.py3-none-any.whl", hash = "sha256:753a0374df26658f99d826cfe40394a686d05985786d946fbe4165b5148f5a7c"},
     {file = "urllib3-1.26.5.tar.gz", hash = "sha256:a7acd0977125325f516bda9735fa7142b909a8d01e8b2e4c8108d0984e6e0098"},
 ]
+watchdog = [
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+    {file = "watchdog-2.1.9-cp310-cp310-macosx_10_9_x86_64.whl", hash = "sha256:6b17d302850c8d412784d9246cfe8d7e3af6bcd45f958abb2d08a6f8bedf695d"},
+    {file = "watchdog-2.1.9-cp310-cp310-macosx_11_0_arm64.whl", hash = "sha256:ee3e38a6cc050a8830089f79cbec8a3878ec2fe5160cdb2dc8ccb6def8552658"},
+    {file = "watchdog-2.1.9-cp36-cp36m-macosx_10_9_x86_64.whl", hash = "sha256:64a27aed691408a6abd83394b38503e8176f69031ca25d64131d8d640a307591"},
+    {file = "watchdog-2.1.9-cp37-cp37m-macosx_10_9_x86_64.whl", hash = "sha256:195fc70c6e41237362ba720e9aaf394f8178bfc7fa68207f112d108edef1af33"},
+    {file = "watchdog-2.1.9-cp38-cp38-macosx_10_9_universal2.whl", hash = "sha256:bfc4d351e6348d6ec51df007432e6fe80adb53fd41183716017026af03427846"},
+    {file = "watchdog-2.1.9-cp38-cp38-macosx_10_9_x86_64.whl", hash = "sha256:8250546a98388cbc00c3ee3cc5cf96799b5a595270dfcfa855491a64b86ef8c3"},
+    {file = "watchdog-2.1.9-cp38-cp38-macosx_11_0_arm64.whl", hash = "sha256:117ffc6ec261639a0209a3252546b12800670d4bf5f84fbd355957a0595fe654"},
+    {file = "watchdog-2.1.9-cp39-cp39-macosx_10_9_universal2.whl", hash = "sha256:97f9752208f5154e9e7b76acc8c4f5a58801b338de2af14e7e181ee3b28a5d39"},
+    {file = "watchdog-2.1.9-cp39-cp39-macosx_10_9_x86_64.whl", hash = "sha256:247dcf1df956daa24828bfea5a138d0e7a7c98b1a47cf1fa5b0c3c16241fcbb7"},
+    {file = "watchdog-2.1.9-cp39-cp39-macosx_11_0_arm64.whl", hash = "sha256:226b3c6c468ce72051a4c15a4cc2ef317c32590d82ba0b330403cafd98a62cfd"},
+    {file = "watchdog-2.1.9-pp37-pypy37_pp73-macosx_10_9_x86_64.whl", hash = "sha256:d9820fe47c20c13e3c9dd544d3706a2a26c02b2b43c993b62fcd8011bcc0adb3"},
+    {file = "watchdog-2.1.9-pp38-pypy38_pp73-macosx_10_9_x86_64.whl", hash = "sha256:70af927aa1613ded6a68089a9262a009fbdf819f46d09c1a908d4b36e1ba2b2d"},
+    {file = "watchdog-2.1.9-pp39-pypy39_pp73-macosx_10_9_x86_64.whl", hash = "sha256:ed80a1628cee19f5cfc6bb74e173f1b4189eb532e705e2a13e3250312a62e0c9"},
+    {file = "watchdog-2.1.9-py3-none-manylinux2014_aarch64.whl", hash = "sha256:9f05a5f7c12452f6a27203f76779ae3f46fa30f1dd833037ea8cbc2887c60213"},
+    {file = "watchdog-2.1.9-py3-none-manylinux2014_armv7l.whl", hash = "sha256:255bb5758f7e89b1a13c05a5bceccec2219f8995a3a4c4d6968fe1de6a3b2892"},
+    {file = "watchdog-2.1.9-py3-none-manylinux2014_i686.whl", hash = "sha256:d3dda00aca282b26194bdd0adec21e4c21e916956d972369359ba63ade616153"},
+    {file = "watchdog-2.1.9-py3-none-manylinux2014_ppc64.whl", hash = "sha256:186f6c55abc5e03872ae14c2f294a153ec7292f807af99f57611acc8caa75306"},
+    {file = "watchdog-2.1.9-py3-none-manylinux2014_ppc64le.whl", hash = "sha256:083171652584e1b8829581f965b9b7723ca5f9a2cd7e20271edf264cfd7c1412"},
+    {file = "watchdog-2.1.9-py3-none-manylinux2014_s390x.whl", hash = "sha256:b530ae007a5f5d50b7fbba96634c7ee21abec70dc3e7f0233339c81943848dc1"},
+    {file = "watchdog-2.1.9-py3-none-manylinux2014_x86_64.whl", hash = "sha256:4f4e1c4aa54fb86316a62a87b3378c025e228178d55481d30d857c6c438897d6"},
+    {file = "watchdog-2.1.9-py3-none-win32.whl", hash = "sha256:5952135968519e2447a01875a6f5fc8c03190b24d14ee52b0f4b1682259520b1"},
+    {file = "watchdog-2.1.9-py3-none-win_amd64.whl", hash = "sha256:7a833211f49143c3d336729b0020ffd1274078e94b0ae42e22f596999f50279c"},
+    {file = "watchdog-2.1.9-py3-none-win_ia64.whl", hash = "sha256:ad576a565260d8f99d97f2e64b0f97a48228317095908568a9d5c786c829d428"},
+    {file = "watchdog-2.1.9.tar.gz", hash = "sha256:43ce20ebb36a51f21fa376f76d1d4692452b2527ccd601950d69ed36b9e21609"},
+]
 wcwidth = [
     {file = "wcwidth-0.1.9-py2.py3-none-any.whl", hash = "sha256:cafe2186b3c009a04067022ce1dcd79cb38d8d65ee4f4791b8888d6599d1bbe1"},
     {file = "wcwidth-0.1.9.tar.gz", hash = "sha256:ee73862862a156bf77ff92b09034fc4825dd3af9cf81bc5b360668d425f3c5f1"},
diff --git a/pyproject.toml b/pyproject.toml
index 773149e..f1b38b1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -67,7 +67,7 @@ freezegun = "*"
 coveragespace = "^3.1"
 
 # Documentation
-mkdocs = "^1.0"
+mkdocs = "^1.3"
 pygments = "*"
 
 # Tooling