Update azure-compute-gallery.md

resource move not supported limitation

Author: sandeepraichura

articles/virtual-machines/azure-compute-gallery.md

@@ -51,6 +51,7 @@ There are limits, per subscription, for deploying resources using Azure Compute
 - 10,000 image versions, per subscription, per region
 - 100 replicas per image version however 50 replicas should be sufficient for most use cases
 - Any disk attached to the image must be less than or equal to 1TB in size
+- Resource move is not supported for 'Azure compute gallery' resources
 
 For more information, see [Check resource usage against limits](../networking/check-usage-against-limits.md) for examples on how to check your current usage.