Update rn-app-manager.md

Author: paigecalvert

docs/release-notes/rn-app-manager.md

@@ -24,8 +24,8 @@ Released on August 25, 2025
 
 Support for Kubernetes: 1.31, 1.32, and 1.33
 
-### New Features {#new-features-1-127-0}
-* Hide demoted releases from the app version history screen.
+### Improvements {#improvements-1-127-0}
+* Hides demoted releases from the app version history screen.
 
 ## 1.126.0