add backup blog

Author: vhorne

articles/firewall/index.yml

@@ -11,7 +11,7 @@ metadata:
   ms.topic: landing-page
   author: vhorne
   ms.author: victorh
-  ms.date: 08/29/2022
+  ms.date: 09/12/2022
   ms.custom: e2e-hybrid
 
 # linkListType: architecture | concept | deploy | download | get-started | how-to-guide | learn | overview | quickstart | reference | tutorial | whats-new
@@ -91,6 +91,14 @@ landingContent:
           - text: Monitor Azure Firewall logs and metrics
             url: tutorial-diagnostics.md
 
+# Card
+  - title: Backup Azure Firewall and policy
+    linkLists:
+      - linkListType: how-to-guide
+        links:
+          - text: Backup Azure Firewall and Azure Firewall Policy with Logic Apps
+            url: https://techcommunity.microsoft.com/t5/azure-network-security-blog/backup-azure-firewall-and-azure-firewall-policy-with-logic-apps/ba-p/3613928
+
 # Card
   - title: Learn about Azure Firewall architecture
     linkLists: