Update articles/storage/blobs/secure-file-transfer-protocol-known-issues.md

Author: Jak-MS

articles/storage/blobs/secure-file-transfer-protocol-known-issues.md

@@ -81,7 +81,7 @@ To learn more, see [SFTP permission model](secure-file-transfer-protocol-support
 
 - For performance issues and considerations, see [SSH File Transfer Protocol (SFTP) performance considerations in Azure Blob storage](secure-file-transfer-protocol-performance.md).
 
--  Blobs uploaded using SFTP doesn't calculate MD-5 even irrespective of any blob size.
+-  By default, the Content-MD5 property of blobs that are uploaded by using SFTP are set to null. Therefore, if you want the Content-MD5 property of those blobs to contain an MD5 hash, your client must calculate that value, and then set the Content-MD5 property of the blob before the uploading the blob.
 
 - Maximum file upload size via the SFTP endpoint is 100 GB.