Updated TOC

Author: Michael Bender

articles/load-balancer/TOC.yml

@@ -196,6 +196,8 @@
       href: configure-vm-scale-set-powershell.md
     - name: Use with an existing Azure Load Balancer - CLI
       href: configure-vm-scale-set-cli.md
+    - name: Update or delete existing Azure Load Balancer used by Virtual Machine Scale Set
+      href: update-load-balancer-with-vm-scale-set.md
   - name: Upgrade from a basic to standard load balancer
     items:
     - name: Upgrade options and guidance