Fix comma

Author: jackrichins

articles/virtual-machines/disk-encryption-overview.md

@@ -12,7 +12,7 @@ ms.custom: references_regions
 
 # Overview of managed disk encryption options
 
-There are several types of encryption available for your managed disks, including Azure Disk Encryption (ADE), Server-Side Encryption (SSE) and encryption at host.
+There are several types of encryption available for your managed disks, including Azure Disk Encryption (ADE), Server-Side Encryption (SSE), and encryption at host.
 
 - **Azure Disk Storage Server-Side Encryption** (also referred to as encryption-at-rest or Azure Storage encryption) is always enabled and automatically encrypts data stored on Azure managed disks (OS and data disks) when persisting on the Storage Clusters. When configured with a Disk Encryption Set (DES), it supports customer-managed keys as well. It doesn't encrypt temp disks or disk caches. For full details, see [Server-side encryption of Azure Disk Storage](./disk-encryption.md).