Update disk-encryption.md

Author: sreekzz

articles/hdinsight/disk-encryption.md

@@ -4,7 +4,7 @@ titleSuffix: Azure HDInsight
 description: This article describes the two layers of encryption available for data at rest on Azure HDInsight clusters.
 ms.service: hdinsight
 ms.topic: conceptual
-ms.date: 08/10/2020 
+ms.date: 04/14/2022
 ms.custom: devx-track-azurepowershell, devx-track-azurecli 
 ms.devlang: azurecli
 ---