Add the conversion of LRS to ZRS is unsupported

Author: RenaShahMSFT

articles/storage/files/files-nfs-protocol.md

@@ -59,6 +59,7 @@ The status of items that appear in this tables may change over time as support c
 | Encryption at rest|	✔️ |
 | Encryption in transit| ⛔ |
 | [LRS or ZRS redundancy types](storage-files-planning.md#redundancy)|	✔️ |
+| [LRS to ZRS conversion](../common/redundancy-migration.md?tabs=portal#switch-between-types-of-replication)|	⛔ |
 | [Private endpoints](storage-files-networking-overview.md#private-endpoints) | ✔️  |
 | Subdirectory mounts|	✔️ |
 | [Grant network access to specific Azure virtual networks](storage-files-networking-endpoints.md#restrict-access-to-the-public-endpoint-to-specific-virtual-networks)|  ✔️  |