diff --git a/wiki/pages/disk-usage.md b/wiki/pages/disk-usage.md
index 0820f0b..f69bdd1 100644
--- a/wiki/pages/disk-usage.md
+++ b/wiki/pages/disk-usage.md
@@ -31,6 +31,7 @@ request that you delete large or unnecessary files.
 please check with admins if you expect to use a lot of disk
 for a short period of time so we can adjust your quota temporarily.
 
+## handy tools
 
 ### quota