mkdocs improvement

mkdocs.yml

@@ -1,7 +1,28 @@
 site_name: OMATH Docs
 theme:
-  name: darkly
+  name: material
+  font:
+    text: Roboto
+    code: Roboto Mono
+  palette:
+    scheme: slate
+    primary: black
+    accent: orange
+  features:
+    - navigation.instant
+    - navigation.tracking
+    - navigation.sections
+    - navigation.top
+    - search.highlight
+    - content.code.copy
+markdown_extensions:
+  - pymdownx.highlight:
+      anchor_linenums: true
+      line_spans: __span
+      pygments_lang_class: true
+  - pymdownx.inlinehilite
+  - pymdownx.superfences
 extra_css:
   - styles/center.css
   - styles/custom-header.css
-  - styles/links.css
+  - styles/links.css