fix toc

Author: alexwolfmsft

docs/azure/TOC.yml

@@ -31,6 +31,8 @@
         href: ./migration/appcat/install.md
       - name: Visual Studio walkthrough
         href: ./migration/appcat/visual-studio.md
+      - name: Visual Studio walkthrough
+        href: ./migration/appcat/visual-studio-copilot.md
       - name: .NET CLI walkthrough
         href: ./migration/appcat/dotnet-cli.md
       - name: Interpret the results