chore(seo): set canonical URL for site

lufftw · lufftw · commit c721328d18ee · 2025-12-18T10:39:16.000+08:00
diff --git a/mkdocs.yml b/mkdocs.yml
@@ -145,6 +145,7 @@ extra:
   social:
     - icon: fontawesome/brands/github
       link: https://github.com/lufftw/neetcode
+      canonical_url: https://lufftw.github.io/neetcode/
   generator: false
 
 extra_css:
