diff --git a/README.md b/README.md
index a9161cc4b6b1caddd34c921de80f20da24e5578f..df1417d1d83982f52ed9f20148b9866da53bc7fb 100644
--- a/README.md
+++ b/README.md
@@ -187,6 +187,10 @@   {{ end }}
 {{ end }}
 ```
 
+## Additional material
+
+- https://github.github.com/gfm/
+
 ## License
 
 [jbmafp](https://github.com/mitjafelicijan/jbmafp) was written by [Mitja