add to Files TOC

Author: tamram

articles/storage/files/TOC.yml

@@ -117,6 +117,8 @@
       href: storage-sync-files-server-endpoint.md
     - name: Manage storage in Azure independent clouds
       href: ../common/storage-powershell-independent-clouds.md?toc=%2fazure%2fstorage%2ffiles%2ftoc.json
+    - name: Change how data is replicated
+      href: ../common/redundancy-migration.md?toc=%2fazure%2fstorage%2ffiles%2ftoc.json
     - name: Initiate an account failover
       href: ../common/storage-initiate-account-failover.md?toc=%2fazure%2fstorage%2ffiles%2ftoc.json
   - name: Monitor