Add "last updated at" at the bottom of documentation pages

Author: thibaudcolas

mkdocs.yml

@@ -24,7 +24,9 @@ markdown_extensions:
   - pymdownx.tasklist:
       custom_checkbox: true
   - pymdownx.tilde
-
+plugins:
+  - search
+  - git-revision-date
 nav:
   # Auto-magically copied from the root of the project in the CI build.
   - 'Home': 'README.md'

pyproject.toml

@@ -48,6 +48,7 @@ isort = {version = "^4.3", extras = ["pyproject"]}
 mkdocs = "^1.1.2"
 mkdocs-material = "^5.5.14"
 pymdown-extensions = "^8.0"
+mkdocs-git-revision-date-plugin = "^0.3.1"
 
 [tool.isort]
 known_first_party = "pattern_library"