add Q & A

Author: duongau

articles/frontdoor/TOC.yml

@@ -414,6 +414,8 @@
       href: standard-premium/troubleshoot-compression.md
     - name: Subscription offers and bandwidth throttling
       href: standard-premium/subscription-offers.md
+    - name: Questions & answers
+      href: https://learn.microsoft.com/en-us/answers/tags/96/azure-front-door
   - name: CDN
     items:
       - name: 404 status
@@ -424,6 +426,8 @@
         href: https://ccadb-public.secure.force.com/microsoft/IncludedCACertificateReportForMSFT
       - name: Subscription offers and bandwidth throttling
         href: ../cdn/subscription-offerings.md?toc=/azure/frontdoor/TOC.json
+      - name: Questions & answer
+        href: https://learn.microsoft.com/en-us/answers/tags/155/azure-cdn
 - name: Reference
   items:
   - name: Front Door
@@ -525,4 +529,4 @@
       href: https://stackoverflow.com/questions/tagged/azure-cdn
     - name: Videos
       href: https://azure.microsoft.com/documentation/videos/index/?services=cdn
-  
+