Update faq.yml

Author: Jiachen Jiang

articles/container-apps/faq.yml

@@ -14,6 +14,13 @@ title: Azure Container Apps frequently asked questions (FAQs)
 summary: This article lists commonly asked questions about Azure Container Apps together with related answers.
 
 sections:
+  - name: Regions
+    questions:
+      - question: |
+          Where can I find the most up-to-date information about supported regions in Azure Container Apps?
+        answer: |
+          A list can be generated by running the following Azure CLI command: az provider show --namespace Microsoft.App --query "resourceTypes[?resourceType=='managedEnvironments'].locations"
+          
   - name: APIs
     questions:
       - question: |