Add note about default plan CLI

Author: maud-lv

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

@@ -5,7 +5,7 @@ ms.service: managed-grafana
 ms.topic: quickstart
 author: maud-lv
 ms.author: malev
-ms.date: 12/13/2022
+ms.date: 10/06/2023
 ms.devlang: azurecli
 ms.custom: engagement-fy23, devx-track-azurecli
 --- 
@@ -14,6 +14,9 @@ ms.custom: engagement-fy23, devx-track-azurecli
 
 Get started by creating an Azure Managed Grafana workspace using the Azure CLI. Creating a workspace will generate an Azure Managed Grafana instance.
 
+> [!NOTE]
+> Azure Managed Grafana now has [two pricing plans](overview.md#service-tiers). This guides takes you through creating a new workspace in the Standard plan. To generate a workspace in the newly released Essential plan, [use the Azure portal](quickstart-managed-grafana-portal.md). We are working on enabling the creation of a workspace in the Essential plan using the Azure CLI.
+
 ## Prerequisites
 
 - An Azure account for work or school and an active subscription. [Create an account for free](https://azure.microsoft.com/free).