upgrade emoji from mkdocs material

Author: timvink

mkdocs.yml

@@ -84,8 +84,8 @@ markdown_extensions:
     - pymdownx.magiclink
     - pymdownx.snippets
     - 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.inlinehilite
     - pymdownx.highlight:
         use_pygments: true