Fix link format for user feedback experience

Author: paulinbar

defender-endpoint/ios-whatsnew.md

@@ -37,7 +37,7 @@ Want to experience Microsoft Defender for Endpoint? [Sign up for a free trial.](
 
 **What's New**
 
-- An improved user feedback experience: See [Key Changes - November 2025](./ios-new-ux#key-changes---november-2025) for details.
+- An improved user feedback experience: See [Key Changes - November 2025](./ios-new-ux.md#key-changes---november-2025) for details.
 
 - Added Landscape mode UI support for the Defender app.