adding details on how to register the RP

Author: axisc

articles/event-hubs/event-hubs-capture-managed-identity.md

@@ -48,11 +48,13 @@ Then you can select `User Assigned` managed identity option when enabling the ca
 #### Capturing events to a capture destination in a different subscription 
 The Event Hubs Capture feature also support capturing data to a capture destination in a different subscription with the use of managed identity.
 
-> [!NOTE]
-> To enable capture with a storage account in a different subscription, the Microsoft.EventHub resource provider should be registered for a subscription which owns the storage account.
+> [!IMPORTANT]
+> To enable capture with a storage account in a different subscription, the **Microsoft.EventHub Resource Provider must be registered for the subscription** which owns the storage account.
+>
+> To learn more about registering a Resource Provider with a specific Azure Subscription, refer to the [documentation](../azure-resource-manager/management/resource-providers-and-types#register-resource-provider).
 >
 
-You may use the portal or use the same ARM templates given in [enabling capture with ARM template guide](./event-hubs-resource-manager-namespace-event-hub-enable-capture.md) with corresponding managed identity.
+You may use the portal or use the ARM templates in [guide](./event-hubs-resource-manager-namespace-event-hub-enable-capture.md) with corresponding managed identity.
 
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