Reliability in Azure Backup - TOC item name update

Author: AbhishekMallick-MS

articles/backup/toc.yml

@@ -172,7 +172,7 @@
   items:
   - name: Reliability
     items:
-    - name: Availability zone and disaster recovery
+    - name: Reliability in Azure Backup
       href: /azure/reliability/reliability-backup?toc=/azure/backup/toc.json&bc=/azure/backup/breadcrumb/toc.json
     - name: Migrate to availability zone support
       href: /azure/reliability/migrate-recovery-services-vault?toc=/azure/backup/toc.json&bc=/azure/backup/breadcrumb/toc.json