Fix link text in FAQ

Author: adegeo

docs/core/porting/github-copilot-app-modernization-faq.yml

@@ -74,4 +74,4 @@ sections:
 additionalContent: |
     ## Related content
 
-    To learn more, see [What is GitHub Copilot app modernization - upgrade for .NET?](github-copilot-app-modernization-overview.md).
+    To learn more, see [What is GitHub Copilot app modernization?](github-copilot-app-modernization-overview.md).