mkdocs: update emoji extension name for material 9.4 and update readme

Author: practicalli-johnny

CHANGELOG.md

@@ -5,6 +5,7 @@
 - dev: action/checkout v4 with sparse-checkout for megalinter
 - dev: sparse-checkout for publish-book workflow
 - dev: action/checkout v4 with sparse-checkout for changelog checker workflow
+- mkdocs: update emoji extension name for material 9.4 and update readme
 
 ### Added
 - building-api: add reitit overview and quick intro

README.md

@@ -74,7 +74,7 @@ Publish book workflow installs Material for MkDocs version 9
 Install mkdocs version 9 using the Python pip package manager
 
 ```bash
-pip install mkdocs-material=="9.*"
+pip3 install mkdocs-material=="9.4"
 ```
 
 Install the plugins used by the Practicalli site using Pip (these are also installed in the GitHub Action workflow)

mkdocs.yml

@@ -63,8 +63,8 @@ markdown_extensions:
   - md_in_html # Grids
   - footnotes # footnotes and abbreviations
   - 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.highlight:
       anchor_linenums: true
   - pymdownx.inlinehilite