Merge pull request #105280 from mumian/0224-tutorial-note

add an important note in the beginner tutorial

Author: PRMerger10

articles/azure-resource-manager/templates/template-tutorial-add-resource.md

@@ -2,7 +2,7 @@
 title: Tutorial - Add resource to template
 description: Describes the steps to create your first Azure Resource Manager template. You learn about the template file syntax and how to deploy a storage account.
 author: mumian
-ms.date: 10/04/2019
+ms.date: 02/24/2020
 ms.topic: tutorial
 ms.author: jgao
 ---
@@ -21,7 +21,10 @@ You must have Visual Studio Code with the Resource Manager Tools extension, and
 
 To add a storage account definition to the existing template, look at the highlighted JSON in the following example. Instead of trying to copy sections of the template, copy the whole file and replace your template with its contents.
 
-Replace **{provide-unique-name}** with a unique storage account name. The storage account name must be unique across Azure. The name must have only lowercase letters or numbers. It can be no longer than 24 characters. You might try a naming pattern like using **store1** as a prefix and then adding your initials and today's date. For example, the name you use could look like **store1abc09092019**.
+Replace **{provide-unique-name}** with a unique storage account name.
+
+> [!IMPORTANT]
+> The storage account name must be unique across Azure. The name must have only lowercase letters or numbers. It can be no longer than 24 characters. You might try a naming pattern like using **store1** as a prefix and then adding your initials and today's date. For example, the name you use could look like **store1abc09092019**.
 
 :::code language="json" source="~/resourcemanager-templates/get-started-with-templates/add-storage/azuredeploy.json" range="1-19" highlight="5-17":::