Update README.md (#9394)

Author: jamesmontemagno

release-notes/9.0/preview/preview6/README.md

@@ -16,11 +16,12 @@
 
 Instructions on getting started with .NET 9 can be found in the [getting started guide](../../get-started.md). Installers and binaries for .NET 9 Preview 6 can be found [here on GitHub](./9.0.0-preview.6.md). 
 
-## Announcements & Discussions
-
 Discuss this release with the product teams on GitHub through the announcements for this release. 
 
-* [.NET 9 Preview 6 Announcement](https://aka.ms/dotnet/9/preview6)
+* [.NET 9 Preview 5 Announcement](https://aka.ms/dotnet/9/preview6)
+* [.NET MAUI](https://github.com/dotnet/maui/discussions/23506) 
+* [ASP.NET Core](https://github.com/dotnet/aspnetcore/discussions/56690)
+* [Libraries & Runtime](https://github.com/dotnet/runtime/discussions/104620)
 
 ## Stay up-to-date