start filling of out of the box functionality

mkdocs.yml

@@ -100,6 +100,8 @@ theme:
     font:
         text: Roboto
         code: Roboto Mono
+#    icon:
+#        annotation: material/arrow-right-circle
 
 markdown_extensions:
     - toc:
@@ -119,6 +121,8 @@ markdown_extensions:
                 format: !!python/name:mermaid2.fence_mermaid
     - admonition
     - pymdownx.details
+    - attr_list
+    - md_in_html
 
 plugins:
     - search