Add link to ASP.NET Core announcement page

Author: Rick-Anderson

aspnetcore/release-notes/aspnetcore-10.0.md

@@ -11,7 +11,7 @@ uid: aspnetcore-10
 
 This article highlights the most significant changes in ASP.NET Core 10.0 with links to relevant documentation.
 
-This article will be updated as new preview releases are made available.
+This article will be updated as new preview releases are made available. See the [Asp.Net Core announcement page](https://github.com/aspnet/announcements/issues?q=is%3Aopen+is%3Aissue+milestone%3A1.0.0-rc2) until this page is update.
 
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