diff --git a/README.md b/README.md
index 6d2c8c45e..f94718e2d 100644
--- a/README.md
+++ b/README.md
@@ -68,6 +68,7 @@ The theme contains documentation in the form of
   - Categories
   - Disqus comments
   - Share buttons
+  - Mermaid Diagrams
   - RSS feed
 - Google analytics
 - Cookies consent