docs(mkdocs.yml): enable code copy button in Material theme

ttw225 · ttw225 · commit b26e639f9b7d · 2026-03-09T17:31:25.000+08:00
diff --git a/mkdocs.yml b/mkdocs.yml
@@ -6,6 +6,8 @@ theme:
   name: material
   logo: images/cz_logo.png
   favicon: images/cz_logo.png
+  features:
+    - content.code.copy
   palette:
     # Palette toggle for automatic mode
     - media: "(prefers-color-scheme)"
