Merge pull request #1320 from sowjanya365/patch-34

Update PEF.md

Author: rjagiewich

docset/winserver2012r2-ps/pef/PEF.md

@@ -20,7 +20,7 @@ ms.reviewer: brianlic
 
 # PEF Module
 ## Description
-{{Manually Enter Description Here}}
+This reference provides cmdlet descriptions and syntax for all Protocol Engineering Framework (PEF) cmdlets. It lists the cmdlets in alphabetical order based on the verb at the beginning of the cmdlet.
 
 ## PEF Cmdlets
 ### [Add-PefMessageSource](./Add-PefMessageSource.md)