added note for mrg name.

Author: mohitmakhija1

articles/sap/monitor/quickstart-portal.md

@@ -37,7 +37,7 @@ If you don't have an Azure subscription, create a [free](https://azure.microsoft
    3. For **Virtual Network** field select a virtual network, which has connectivity to your SAP systems.
    4. For the **Subnet** field, select a subnet that has connectivity to your SAP systems. You can use an existing subnet or create a new subnet. Make sure that you select a subnet, which is an **IPv4/25 block or larger**.
    5. For **Log Analytics Workspace**, you can use an existing Log Analytics workspace or create a new one. If you create a new workspace, it will be created inside the managed resource group along with other monitoring resources.
-   6. When entering **managed resource group** name, make sure to use a unique name. This name is used to create a resource group, which will contain all the monitoring resources.
+   6. When entering **managed resource group** name, make sure to use a unique name. This name is used to create a resource group, which will contain all the monitoring resources. Managed Resource Group name cannot be changed once the resource is created.
 
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