diff --git a/config/_default/hugo.toml b/config/_default/hugo.toml
index d95b38f3..76c3f9bb 100644
--- a/config/_default/hugo.toml
+++ b/config/_default/hugo.toml
@@ -168,6 +168,7 @@ sidebar_menu_compact = true
     baseName = "checklist"
 
 # Add font media types for downloading KaTeX fonts.
+# See: https://www.docsy.dev/docs/content/diagrams-and-formulae/#create-media-types-for-katex-fonts
 [mediaTypes]
   [mediaTypes.'font/woff']
     suffixes = ['woff']