update mkdocs config

Author: snopoke

mkdocs.yml

@@ -1,21 +1,41 @@
 site_name: Task Badger Documentation
 site_url: https://docs.taskbadger.net
+repo_url: https://github.com/taskbadger/taskbadger-docs/
 theme:
   name: material
   logo: assets/logo_white.png
   favicon: assets/favicon.ico
-  palette:
-    scheme: slate
-    palette:
-      primary: indigo
   features:
+    - header.autohide
+    - navigation.expand
+    - navigation.footer
+    - navigation.indexes
+    - navigation.instant
+    - navigation.prune
+    - navigation.sections
+#    - navigation.tabs
+#    - navigation.tabs.sticky
     - navigation.tracking
+    - navigation.top
+    - search.highlight
+    - search.share
+    - search.suggest
+    - toc.follow
     - content.code.annotate
     - content.code.copy
     - content.tabs.link
-    - search.highlight
-    - navigation.instant
-    - navigation.footer
+  palette:
+    - media: "(prefers-color-scheme: light)"
+      scheme: default
+      toggle:
+        icon: material/brightness-7
+        name: Switch to dark mode
+    - media: "(prefers-color-scheme: dark)"
+      scheme: slate
+      primary: indigo
+      toggle:
+        icon: material/brightness-4
+        name: Switch to light mode
 markdown_extensions:
   - admonition
   - tables
@@ -49,7 +69,7 @@ extra:
       link: https://twitter.com/@task_badger
     - icon: fontawesome/brands/github
       link: https://github.com/taskbadger
-copyright: Copyright © 2020 - 2023 Simon Kelly
+copyright: Copyright © 2020 - 2025 Simon Kelly
 nav:
   - 'index.md'
   - 'basics.md'