pre-req updates

Author: HJToland3

articles/dms/pre-reqs.md

@@ -10,7 +10,7 @@ ms.service: dms
 ms.workload: data-services
 ms.custom: "seo-lt-2019"
 ms.topic: article
-ms.date: 02/20/2020
+ms.date: 02/24/2020
 ---
 
 # Overview of prerequisites for using the Azure Database Migration Service
@@ -30,7 +30,7 @@ Azure Database Migration Service prerequisites that are common across all suppor
 * Enable the TCP/IP protocol, which is disabled by default during SQL Server Express installation, by following the instructions in the article [Enable or Disable a Server Network Protocol](https://docs.microsoft.com/sql/database-engine/configure-windows/enable-or-disable-a-server-network-protocol#SSMSProcedure).
 
     > [!IMPORTANT]
-    > Creating an instance of Azure Database Migration Service requires access to virtual networt settings that are normally not within the same resource group. As a result, the user creating an instance of DMS requires permission at subscription level. To create the required roles, which you can assign as needed, run the following script:
+    > Creating an instance of Azure Database Migration Service requires access to virtual network settings that are normally not within the same resource group. As a result, the user creating an instance of DMS requires permission at subscription level. To create the required roles, which you can assign as needed, run the following script:
     >
     > ```
     >
@@ -41,7 +41,10 @@ Azure Database Migration Service prerequisites that are common across all suppor
     > $writerActions = `
     > "Microsoft.DataMigration/services/*/write", `
     > "Microsoft.DataMigration/services/*/delete", `
-    > "Microsoft.DataMigration/services/*/action"
+    > "Microsoft.DataMigration/services/*/action"", `
+    > "Microsoft.Network/virtualNetworks/subnets/join/action", `
+    > "Microsoft.Resources/deployments/*/read", `
+    > "Microsoft.Resources/deployments/*/write"
     >
     > $writerActions += $readerActions
     >