diff --git a/_config.yml b/_config.yml
index 17ac991637c3..61213c173db2 100644
--- a/_config.yml
+++ b/_config.yml
@@ -85,6 +85,7 @@ pagination:
 
 # Comments
 disqus_shortname: al-folio # put your disqus shortname
+# https://help.disqus.com/en/articles/1717111-what-s-a-shortname
 
 # -----------------------------------------------------------------------------
 # Collections