Tweak TOC

Author: ggailey777

articles/azure-functions/TOC.yml

@@ -75,9 +75,9 @@
     href: functions-cli-samples.md    
 - name: Concepts
   items:
-  - name: Compare versions 1.x and 2.x
+  - name: Compare runtime versions
     href: functions-versions.md
-    displayName: migrate, migration
+    displayName: migrate, migration, v3
   - name: Premium plan
     href: functions-premium-plan.md
   - name: Deployments