fix: Add missing Markdown extensions

Author: pawamoy

project/mkdocs.yml.jinja

@@ -99,6 +99,12 @@ markdown_extensions:
 - admonition
 - callouts
 - footnotes
+- pymdownx.blocks.admonition
+- pymdownx.blocks.tab:
+    alternate_style: true
+    slugify: !!python/object/apply:pymdownx.slugs.slugify
+      kwds:
+        case: lower
 - pymdownx.emoji:
     emoji_index: !!python/name:material.extensions.emoji.twemoji
     emoji_generator: !!python/name:material.extensions.emoji.to_svg