(AzureCXP) fixes MicrosoftDocs/azure-docs#123815

Updated line no: 92 from "You can optionally migrate back to the original subnet you used in each region before migration to the stv2 platform." to "You can optionally migrate back to the original subnet you used in each region after migration to the stv2 platform."

Author: PesalaPavan

articles/api-management/migrate-stv1-to-stv2-vnet.md

@@ -89,7 +89,7 @@ If your API Management instance is deployed in multiple regions, repeat the prec
 
 ## (Optional) Migrate back to original subnet
 
-You can optionally migrate back to the original subnet you used in each region before migration to the `stv2` platform. To do so, update the VNet configuration again, this time specifying the original VNet and subnet in each region. As in the preceding migration, expect a long-running operation, and expect the VIP address to change.
+You can optionally migrate back to the original subnet you used in each region after migration to the `stv2` platform. To do so, update the VNet configuration again, this time specifying the original VNet and subnet in each region. As in the preceding migration, expect a long-running operation, and expect the VIP address to change.
 
 The following image shows a high level overview of what happens during migration back to the original subnet.