Update Restore-RecoverableItems to include PurgedItems switch

Update Restore-RecoverableItems to include PurgedItems switch with SourceFolder

Author: Lakshminarayand9

exchange/exchange-ps/exchange/mailboxes/Restore-RecoverableItems.md

@@ -18,7 +18,7 @@ For information about the parameter sets in the Syntax section below, see Exchan
 ## SYNTAX
 
 ```
-Restore-RecoverableItems -Identity <GeneralMailboxOrMailUserIdParameter> [-EntryID <String>] [-FilterEndTime <DateTime>] [-FilterItemType <String>] [-FilterStartTime <DateTime>] [-LastParentFolderID <String>] [-ResultSize <Unlimited>] [-SourceFolder <DeletedItems | RecoverableItems>] [-SubjectContains <String>] [<CommonParameters>]
+Restore-RecoverableItems -Identity <GeneralMailboxOrMailUserIdParameter> [-EntryID <String>] [-FilterEndTime <DateTime>] [-FilterItemType <String>] [-FilterStartTime <DateTime>] [-LastParentFolderID <String>] [-ResultSize <Unlimited>] [-SourceFolder <DeletedItems | RecoverableItems | Purgeditems>] [-SubjectContains <String>] [<CommonParameters>]
 ```
 
 ## DESCRIPTION
@@ -218,6 +218,8 @@ The SourceFolder parameter specifies the folder in the mailbox to search for del
 
 - RecoverableItems: Recoverable items that have been deleted from the Deleted Items folder.
 
+-Purgeditems: If either Litigation Hold or single item recovery is enabled, this Folder contains all items that are hard deleted. This folder isn't visible to end users
+
 If you don't use this parameter, the command will search both locations.
 
 ```yaml