added upgrade links to TOC; TBD landing page

Author: KarlErickson

articles/github-copilot-app-modernization/toc.yml

@@ -7,28 +7,60 @@ items:
       - name: Java
         expanded: true
         items:
-          - name: Overview
-            href: ../java/migration/migrate-github-copilot-app-modernization-for-java.md?toc=/azure/developer/github-copilot-app-modernization/toc.json&bc=/azure/developer/github-copilot-app-modernization/breadcrumb/toc.json
-          - name: FAQ
-            href: ../java/migration/migrate-github-copilot-app-modernization-for-java-faq.yml?toc=/azure/developer/github-copilot-app-modernization/toc.json&bc=/azure/developer/github-copilot-app-modernization/breadcrumb/toc.json
-          - name: Predefined tasks
-            href: ../java/migration/migrate-github-copilot-app-modernization-for-java-predefined-tasks.md?toc=/azure/developer/github-copilot-app-modernization/toc.json&bc=/azure/developer/github-copilot-app-modernization/breadcrumb/toc.json
-          - name: "Quickstart: Assess and migrate a Java project"
-            href: ../java/migration/migrate-github-copilot-app-modernization-for-java-quickstart-assess-migrate.md?toc=/azure/developer/github-copilot-app-modernization/toc.json&bc=/azure/developer/github-copilot-app-modernization/breadcrumb/toc.json
-          - name: "Quickstart: Create and apply your own task"
-            href: ../java/migration/migrate-github-copilot-app-modernization-for-java-quickstart-create-and-apply-your-own-task.md?toc=/azure/developer/github-copilot-app-modernization/toc.json&bc=/azure/developer/github-copilot-app-modernization/breadcrumb/toc.json
-          - name: Migration sample
-            href: ../java/migration/migrate-github-copilot-app-modernization-for-java-sample.md?toc=/azure/developer/github-copilot-app-modernization/toc.json&bc=/azure/developer/github-copilot-app-modernization/breadcrumb/toc.json
+          - name: Migrate
+            expanded: true
+            items:
+            - name: Overview
+              href: ../java/migration/migrate-github-copilot-app-modernization-for-java.md?toc=/azure/developer/github-copilot-app-modernization/toc.json&bc=/azure/developer/github-copilot-app-modernization/breadcrumb/toc.json
+            - name: FAQ
+              href: ../java/migration/migrate-github-copilot-app-modernization-for-java-faq.yml?toc=/azure/developer/github-copilot-app-modernization/toc.json&bc=/azure/developer/github-copilot-app-modernization/breadcrumb/toc.json
+            - name: Predefined tasks
+              href: ../java/migration/migrate-github-copilot-app-modernization-for-java-predefined-tasks.md?toc=/azure/developer/github-copilot-app-modernization/toc.json&bc=/azure/developer/github-copilot-app-modernization/breadcrumb/toc.json
+            - name: "Quickstart: Assess and migrate a Java project"
+              href: ../java/migration/migrate-github-copilot-app-modernization-for-java-quickstart-assess-migrate.md?toc=/azure/developer/github-copilot-app-modernization/toc.json&bc=/azure/developer/github-copilot-app-modernization/breadcrumb/toc.json
+            - name: "Quickstart: Create and apply your own task"
+              href: ../java/migration/migrate-github-copilot-app-modernization-for-java-quickstart-create-and-apply-your-own-task.md?toc=/azure/developer/github-copilot-app-modernization/toc.json&bc=/azure/developer/github-copilot-app-modernization/breadcrumb/toc.json
+            - name: Migration sample
+              href: ../java/migration/migrate-github-copilot-app-modernization-for-java-sample.md?toc=/azure/developer/github-copilot-app-modernization/toc.json&bc=/azure/developer/github-copilot-app-modernization/breadcrumb/toc.json
+          - name: Upgrade
+            expanded: true
+            items:
+            - name: Overview
+              href: /java/upgrade/overview?toc=/azure/developer/github-copilot-app-modernization/toc.json&bc=/azure/developer/github-copilot-app-modernization/breadcrumb/toc.json
+            - name: FAQ
+              href: /java/upgrade/faq?toc=/azure/developer/github-copilot-app-modernization/toc.json&bc=/azure/developer/github-copilot-app-modernization/breadcrumb/toc.json
+            - name: "Quickstart: Upgrade a Java project"
+              href: /java/upgrade/quickstart-upgrade?toc=/azure/developer/github-copilot-app-modernization/toc.json&bc=/azure/developer/github-copilot-app-modernization/breadcrumb/toc.json
+            - name: "Quickstart: Generate unit tests"
+              href: /java/upgrade/quickstart-unit-tests?toc=/azure/developer/github-copilot-app-modernization/toc.json&bc=/azure/developer/github-copilot-app-modernization/breadcrumb/toc.json
+            - name: Customize the upgrade plan
+              href: /java/upgrade/customize-upgrade-plan?toc=/azure/developer/github-copilot-app-modernization/toc.json&bc=/azure/developer/github-copilot-app-modernization/breadcrumb/toc.json
+            - name: Upgrade a framework or third-party dependency
+              href: /java/upgrade/framework-upgrade?toc=/azure/developer/github-copilot-app-modernization/toc.json&bc=/azure/developer/github-copilot-app-modernization/breadcrumb/toc.json
+            - name: Use tools outside of an upgrade session
+              href: /java/upgrade/tools?toc=/azure/developer/github-copilot-app-modernization/toc.json&bc=/azure/developer/github-copilot-app-modernization/breadcrumb/toc.json
       - name: .NET
         expanded: true
         items:
-          - name: Overview
-            href: /dotnet/azure/migration/appmod/overview?toc=/azure/developer/github-copilot-app-modernization/toc.json&bc=/azure/developer/github-copilot-app-modernization/breadcrumb/toc.json
-          - name: FAQ
-            href: /dotnet/azure/migration/appmod/faq?toc=/azure/developer/github-copilot-app-modernization/toc.json&bc=/azure/developer/github-copilot-app-modernization/breadcrumb/toc.json
-          - name: Predefined tasks
-            href: /dotnet/azure/migration/appmod/predefined-tasks?toc=/azure/developer/github-copilot-app-modernization/toc.json&bc=/azure/developer/github-copilot-app-modernization/breadcrumb/toc.json
-          - name: "Quickstart: Assess and migrate a .NET project"
-            href: /dotnet/azure/migration/appmod/quickstart?toc=/azure/developer/github-copilot-app-modernization/toc.json&bc=/azure/developer/github-copilot-app-modernization/breadcrumb/toc.json
-          - name: Migration sample
-            href: /dotnet/azure/migration/appmod/sample?toc=/azure/developer/github-copilot-app-modernization/toc.json&bc=/azure/developer/github-copilot-app-modernization/breadcrumb/toc.json
+          - name: Migrate
+            expanded: true
+            items:
+            - name: Overview
+              href: /dotnet/azure/migration/appmod/overview?toc=/azure/developer/github-copilot-app-modernization/toc.json&bc=/azure/developer/github-copilot-app-modernization/breadcrumb/toc.json
+            - name: FAQ
+              href: /dotnet/azure/migration/appmod/faq?toc=/azure/developer/github-copilot-app-modernization/toc.json&bc=/azure/developer/github-copilot-app-modernization/breadcrumb/toc.json
+            - name: Predefined tasks
+              href: /dotnet/azure/migration/appmod/predefined-tasks?toc=/azure/developer/github-copilot-app-modernization/toc.json&bc=/azure/developer/github-copilot-app-modernization/breadcrumb/toc.json
+            - name: "Quickstart: Assess and migrate a .NET project"
+              href: /dotnet/azure/migration/appmod/quickstart?toc=/azure/developer/github-copilot-app-modernization/toc.json&bc=/azure/developer/github-copilot-app-modernization/breadcrumb/toc.json
+            - name: Migration sample
+              href: /dotnet/azure/migration/appmod/sample?toc=/azure/developer/github-copilot-app-modernization/toc.json&bc=/azure/developer/github-copilot-app-modernization/breadcrumb/toc.json
+          - name: Upgrade
+            expanded: true
+            items:
+            - name: Overview
+              href: /dotnet/core/porting/upgrade-assistant-overview?toc=/azure/developer/github-copilot-app-modernization/toc.json&bc=/azure/developer/github-copilot-app-modernization/breadcrumb/toc.json
+            - name: Install
+              href: /dotnet/core/porting/upgrade-assistant-install?toc=/azure/developer/github-copilot-app-modernization/toc.json&bc=/azure/developer/github-copilot-app-modernization/breadcrumb/toc.json
+            - name: How to upgrade
+              href: /dotnet/core/porting/upgrade-assistant-how-to-upgrade?toc=/azure/developer/github-copilot-app-modernization/toc.json&bc=/azure/developer/github-copilot-app-modernization/breadcrumb/toc.json