diff --git a/_Sidebar.md b/_Sidebar.md
index 2456b06..14d5d75 100644
--- a/_Sidebar.md
+++ b/_Sidebar.md
@@ -166,3 +166,4 @@
 * Development States Notes
   * [Work Needed (Future Enhancement Suggestions)](Work-needed)
   * [External App Roadmap](External-App-Roadmap)
+  * [SD card](SD-card)