add headings

Author: tamram

articles/storage/blobs/storage-blob-immutability-policies-manage.md

@@ -6,7 +6,7 @@ author: tamram
 
 ms.service: storage
 ms.topic: conceptual
-ms.date: 11/18/2019
+ms.date: 11/26/2019
 ms.author: tamram
 ms.subservice: blobs
 ---
@@ -15,9 +15,11 @@ ms.subservice: blobs
 
 Immutable storage for Azure Blob storage enables users to store business-critical data objects in a WORM (Write Once, Read Many) state. This state makes the data non-erasable and non-modifiable for a user-specified interval. For the duration of the retention interval, blobs can be created and read, but cannot be modified or deleted. Immutable storage is available for general-purpose v2 and Blob storage accounts in all Azure regions.
 
-This article shows how to set and manage immutability policies for Blob storage using the Azure portal, PowerShell, or Azure CLI. For more information about immutable storage, see [Store business-critical blob data with immutable storage](storage-blob-immutable-storage.md).
+This article shows how to set and manage immutability policies and legal holds for data in Blob storage using the Azure portal, PowerShell, or Azure CLI. For more information about immutable storage, see [Store business-critical blob data with immutable storage](storage-blob-immutable-storage.md).
 
-## [Portal](#tab/azure-portal)
+## Set retention policies and legal holds
+
+### [Portal](#tab/azure-portal)
 
 1. Create a new container or select an existing container to store the blobs that need to be kept in the immutable state. The container must be in a general-purpose v2 or Blob storage account.