docs: rewrite the configuration section.

mkdocs.yml

@@ -70,6 +70,7 @@ plugins:
   - minify:
       minify_html: true
   - git-committers:
+      enabled: !ENV [ENABLED_GIT_REVISION_DATE, true]
       token: !ENV [MKDOCS_GIT_COMMITTERS_APIKEY]
       repository: roddhjav/apparmor.d
       branch: main
@@ -116,7 +117,9 @@ markdown_extensions:
       user: squidfunk
       repo: mkdocs-material
   - pymdownx.smartsymbols
-  - pymdownx.snippets
+  - pymdownx.snippets:
+      auto_append:
+        - docs/abbreviations.md
   - pymdownx.superfences:
       custom_fences:
         - name: mermaid