Update mkdocs.yml

Update emoji plugin

Author: santaimpersonator

mkdocs.yml

@@ -195,8 +195,8 @@ markdown_extensions:
   - md_in_html
   - attr_list
   - pymdownx.emoji:
-      emoji_index: !!python/name:materialx.emoji.twemoji
-      emoji_generator: !!python/name:materialx.emoji.to_svg
+      emoji_index: !!python/name:material.extensions.emoji.twemoji
+      emoji_generator: !!python/name:material.extensions.emoji.to_svg
       options:
         custom_icons:
           - overrides/.icons