diff --git a/_Sidebar.md b/_Sidebar.md
index 453f18a..087e6f2 100644
--- a/_Sidebar.md
+++ b/_Sidebar.md
@@ -1,3 +1,6 @@
+### App usage
+- TODO
+
 ### UniStore
 - [storeInfo](storeInfo)
 - [storeContent](storeContent)