tweaked description in new cshuntgroup cmdlet

Author: mattwlam

skype/skype-ps/skype/New-CsHuntGroup.md

@@ -20,7 +20,7 @@ New-CsHuntGroup -Domain <System.String> -Name <System.String> [-AgentAlertTime <
 ```
 
 ## DESCRIPTION
-Creates new Call Queue in your Skype for Business Online organization. Call Queues are part of Phone System in Office 365.
+Creates a new Call Queue in your Skype for Business Online organization. Call Queues are part of Phone System in Office 365.
 
 Note, you need to specify UseDefaultMusicOnHold $True (default is none), or provide MusicOnHoldFileName and MusicOnHoldFileContent.