updated broken links to Troubleshooting dashboard

Author: mbender-ms

articles/load-balancer/TOC.yml

@@ -231,6 +231,8 @@
       href: manage-admin-state-how-to.md
     - name: Retrieve information using the Azure Instance Metadata Service
       href: instance-metadata-service-load-balancer.md
+    - name: Testing inbound frontend IP address reachability
+      href: load-balancer-test-frontend-reachability.md
     - name: Health probes
       items:
         - name: Manage health probes
@@ -259,12 +261,8 @@
           href: load-balancer-health-event-logs.md
         - name: Manage Load Balancer health status
           href: load-balancer-manage-health-status.md
-- name: Troubleshoot
-  items:
-    - name: Support and troubleshooting for Azure Load Balancer
-      href: load-balancer-support-help.md
-    - name: Testing inbound frontend IP address reachability
-      href: load-balancer-test-frontend-reachability.md
+- name: Support and troubleshooting for Azure Load Balancer
+  href: load-balancer-support-help.md
 - name: Reference
   items:
     - name: Code samples