fixed mkdocs serve not running because of changes made to the Emoji syntax

Author: TedVanderfeen

mkdocs.yml

@@ -39,9 +39,10 @@ markdown_extensions:
   - attr_list
   - pymdownx.tabbed:
       alternate_style: true 
-  - pymdownx.emoji:      
-      emoji_index: !!python/name:materialx.emoji.twemoji
-      emoji_generator: !!python/name:materialx.emoji.to_svg
+  - pymdownx.emoji:
+      emoji_index: !!python/name:material.extensions.emoji.twemoji
+      emoji_generator: !!python/name:material.extensions.emoji.to_svg
+
 
 use_directory_urls: false
 strict: true