docs: Replace Troubleshoot section with Support and troubleshooting entry in VNET TOC

Author: asudbring

articles/virtual-network/toc.yml

@@ -238,32 +238,8 @@
           href: /azure/resource-mover/tutorial-move-region-virtual-machines?toc=%2Fazure%2Fvirtual-network%2Ftoc.json
     - name: Azure Virtual Network reliability
       href: /azure/reliability/reliability-virtual-network?toc=%2Fazure%2Fvirtual-network%2Ftoc.json
-- name: Troubleshoot
-  items:
-    - name: Configure reverse lookup zones for an SMTP banner check
-      href: create-ptr-for-smtp-service.md
-    - name: Diagnose a virtual machine network traffic filter problem
-      href: diagnose-network-traffic-filter-problem.md
-    - name: Diagnose a virtual machine routing problem
-      href: diagnose-network-routing-problem.md
-    - name: Network virtual appliance issues in Azure
-      href: virtual-network-troubleshoot-nva.md
-    - name: Resource logging for a network security group
-      href: virtual-network-nsg-manage-log.md
-    - name: Test network latency between Azure VMs
-      href: /troubleshoot/azure/virtual-network/virtual-network-test-latency?toc=%2Fazure%2Fvirtual-network%2Ftoc.json
-    - name: Test VM network throughput by using NTTTCP
-      href: /troubleshoot/azure/virtual-network/virtual-network-bandwidth-testing?toc=%2Fazure%2Fvirtual-network%2Ftoc.json
-    - name: Troubleshoot Azure VM connectivity problems
-      href: /troubleshoot/azure/virtual-network/troubleshoot-vm-connectivity?toc=%2Fazure%2Fvirtual-network%2Ftoc.json
-    - name: Troubleshoot outbound SMTP connectivity problems
-      href: /troubleshoot/azure/virtual-network/troubleshoot-outbound-smtp-connectivity?toc=%2Fazure%2Fvirtual-network%2Ftoc.json
-    - name: Troubleshoot virtual network peering issues
-      href: /troubleshoot/azure/virtual-network/virtual-network-troubleshoot-peering-issues?toc=%2Fazure%2Fvirtual-network%2Ftoc.json
-    - name: Troubleshoot connectivity problems between Azure VMs
-      href: /troubleshoot/azure/virtual-network/virtual-network-troubleshoot-connectivity-problem-between-vms?toc=%2Fazure%2Fvirtual-network%2Ftoc.json
-    - name: Troubleshoot virtual network deletion failures
-      href: /troubleshoot/azure/virtual-network/virtual-network-troubleshoot-cannot-delete-vnet?toc=%2Fazure%2Fvirtual-network%2Ftoc.json
+- name: Support and troubleshooting
+  href: virtual-network-support-help.md
 - name: Reference
   items:
     - name: Monitor data reference