Update TOC

Author: rajats22

articles/backup/toc.yml

@@ -214,9 +214,9 @@
       href: backup-azure-file-folder-backup-faq.yml
     - name: FAQ-Back up Azure Files
       href: backup-azure-files-faq.yml
-    - name: FAQ- Azure Disk Backup
+    - name: FAQ-Azure Disk Backup
       href: disk-backup-faq.yml
-    - name: FAQ- Azure Backup for AKS
+    - name: FAQ-Azure Backup for AKS
       href: aks-backup-faq.yml
     - name: FAQ-Back up SQL Server databases on Azure VMs
       href: faq-backup-sql-server.yml