Update prerequisites

Author: maud-lv

articles/managed-grafana/quickstart-managed-grafana-portal.md

@@ -5,7 +5,7 @@ ms.service: managed-grafana
 ms.topic: quickstart
 author: maud-lv
 ms.author: malev
-ms.date: 08/12/2022
+ms.date: 12/13/2022
 
 --- 
 
@@ -15,13 +15,14 @@ Get started by creating an Azure Managed Grafana workspace using the Azure porta
 
 ## Prerequisite
 
-An Azure account with an active subscription. [Create an account for free](https://azure.microsoft.com/free).
+- An Azure account with an active subscription. [Create an account for free](https://azure.microsoft.com/free).
+- The user must be a resource group Contributor or subscription Owner
 
 ## Create a Managed Grafana workspace
 
 1. Sign in to the [Azure portal](https://portal.azure.com) with your Azure account.  
 
-1. In the upper-left corner of the home page, select **Create a resource**. In the **Search resources, services, and docs (G+/)** box, enter *Azure Managed Grafana* and select **Azure Managed Grafana**.
+1. In the **Search resources, services, and docs (G+/)** box, enter *Azure Managed Grafana* and select **Azure Managed Grafana**.
 
     :::image type="content" source="media/quickstart-portal/find-azure-portal-grafana.png" alt-text="Screenshot of the Azure platform. Find Azure Managed Grafana in the marketplace." :::
 
@@ -46,7 +47,7 @@ An Azure account with an active subscription. [Create an account for free](https
 1. Select **Next : Permission >** to control access rights for your Grafana instance and data sources:
    1. **System assigned managed identity** is set to **On**.
 
-   1. The box **Add role assignment to this identity with 'Monitoring Reader' role on target subscription** is checked.
+   1. The box **Add role assignment to this identity with 'Monitoring Reader' role on target subscription** is checked by default.
 
    1. The box **Include myself** under **Grafana administrator role** is checked. This option grants you the Grafana administrator role, and lets you manage access rights. You can give this right to more members by selecting **Add**. If this option grays out for you, ask someone with the Owner role on the subscription to assign you the Grafana Admin role.