Update mkdocs.yml

Author: turukawa

mkdocs.yml

@@ -81,8 +81,8 @@ markdown_extensions:
 - pymdownx.highlight
 - pymdownx.extra
 - 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
 - pymdownx.tabbed:
     alternate_style: true