update toc

Author: halkazwini

articles/frontdoor/TOC.yml

@@ -271,22 +271,10 @@
     href: understanding-pricing.md
   - name: CDN and Front Door price comparison
     href: compare-cdn-front-door-price.md
-- name: Troubleshoot
-  items:
-  - name: Troubleshoot with RefString
-    href: /troubleshoot/azure/front-door/refstring
-  - name: Troubleshoot Front Door issues
-    href: /troubleshoot/azure/front-door/troubleshoot-issues
-  - name: Troubleshoot Front Door performance issues
-    href: /troubleshoot/azure/front-door/troubleshoot-performance-issues
-  - name: Troubleshoot file compression
-    href: /troubleshoot/azure/front-door/troubleshoot-compression
-  - name: Allowed certificate authorities
-    href: https://ccadb.my.salesforce-sites.com/microsoft/IncludedCACertificateReportForMSFT
   - name: Subscription offers and bandwidth throttling
     href: standard-premium/subscription-offers.md
-  - name: Questions & answers
-    href: /answers/tags/96/azure-front-door
+- name: Support and troubleshooting
+  href: support-help.md
 - name: CDN and Front Door (classic)
   items:
   - name: Get started
@@ -514,6 +502,8 @@
       href: https://azure.microsoft.com/pricing/calculator/
     - name: Service updates
       href: https://azure.microsoft.com/updates/?product=frontdoor
+    - name: Allowed certificate authorities
+      href: https://ccadb.my.salesforce-sites.com/microsoft/IncludedCACertificateReportForMSFT
   - name: CDN
     items:
     - name: Azure Content Delivery Network billing
@@ -532,3 +522,4 @@
       href: /shows/Inside-Azure-for-IT/?products=azure-cdn
   - name: Networking blog
     href: https://techcommunity.microsoft.com/category/azure/blog/azurenetworkingblog
+