fix contextual toc links

Author: gewarren

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

@@ -17,6 +17,6 @@ items:
     expanded: true
     items:
       - name: Migrate a .NET project
-        href: ../../../azure/migration/appmod/quickstart.md?toc=/dotnet/navigate/github-copilot-modernize/toc.json&bc=/dotnet/breadcrumb/toc.json
+        href: ../../../azure/migration/appmod/quickstart.md?toc=/dotnet/core/porting/github-copilot-app-modernization/toc.json&bc=/dotnet/breadcrumb/toc.json
       - name: Migration sample
-        href: ../../../azure/migration/appmod/sample.md?toc=/dotnet/navigate/github-copilot-modernize/toc.json&bc=/dotnet/breadcrumb/toc.json
+        href: ../../../azure/migration/appmod/sample.md?toc=/dotnet/core/porting/github-copilot-app-modernization/toc.json&bc=/dotnet/breadcrumb/toc.json