comments about enabled mkdocs extensions

Author: sujaypatil96

template/mkdocs.yml.jinja

@@ -40,10 +40,20 @@ markdown_extensions:
           # disable code highlighting to display diagrams
           format: !!python/name:pymdownx.superfences.fence_code_format
           class: mermaid
+  # https://facelessuser.github.io/pymdown-extensions/extensions/magiclink/
+  # auto-link HTML, FTP, and email links
+  - pymdownx.magiclink
+  # https://squidfunk.github.io/mkdocs-material/setup/extensions/python-markdown/#admonition
+  # support for call-outs
   - admonition
+  # https://squidfunk.github.io/mkdocs-material/setup/extensions/python-markdown/#tables
+  # create tables
   - tables
-  - pymdownx.magiclink
+  # https://squidfunk.github.io/mkdocs-material/setup/extensions/python-markdown/#attribute-lists
+  # enables use of HTML attributes and CSS classes to applicable elements
   - attr_list
+  # https://squidfunk.github.io/mkdocs-material/setup/extensions/python-markdown/#markdown-in-html
+  # write markdown inside of HTML
   - md_in_html
 
   # TODO rebuild docs on schema change (https://github.com/linkml/linkml-project-copier/issues/39)