diff --git a/pages/common/cmark.md b/pages/common/cmark.md
index 96d51122c..27368a565 100644
--- a/pages/common/cmark.md
+++ b/pages/common/cmark.md
@@ -1,6 +1,7 @@
 # cmark
 
 > Converts CommonMark Markdown formatted text to other formats.
+> More information: <https://github.com/commonmark/cmark>.
 
 - Render a Commonmark Markdown file to HTML: