update docs

mkdocs.yaml

@@ -60,9 +60,12 @@ markdown_extensions:
       pygments_lang_class: true
   - pymdownx.inlinehilite
   - pymdownx.superfences
+  - pymdownx.tabbed: # content tabs
+      alternate_style: true
   - toc:
       permalink: true
       title: Page contents
+  - admonition # blocks like note, warning, tip, etc.
 
 plugins:
   - search