Update Get-MessageTrackingLog, fix -Recipients wrong description for multiple values

Author: raomin

exchange/exchange-ps/exchange/Get-MessageTrackingLog.md

@@ -64,6 +64,13 @@ Get-MessageTrackingLog -Server Mailbox01 -Start "03/13/2018 09:00:00" -End "03/1
 
 This example searches the message tracking logs on the Mailbox server named Mailbox01 for information about all messages sent from March 13, 2018, 09:00 to March 15, 2018, 17:00 by the sender [email protected].
 
+### Example 2
+```powershell
+Get-MessageTrackingLog -Server Mailbox01 -Start "03/13/2018 09:00:00" -Recipients @("[email protected]","[email protected]")
+```
+
+This example searches the message tracking logs on the Mailbox server named Mailbox01 for information about all messages sent since March 13, 2018, 09:00 until now to any of the recipients [email protected] and/or [email protected].
+
 ## PARAMETERS
 
 ### -DomainController
@@ -169,7 +176,7 @@ Accept wildcard characters: False
 ```
 
 ### -Recipients
-The Recipients parameter filters the message tracking log entries by the SMTP email address of the message recipients. Multiple recipients in a single message are logged in a single message tracking log entry. Unexpanded distribution group recipients are logged by using the group's SMTP email address. You can specify multiple recipient email addresses separated by commas.
+The Recipients parameter filters the message tracking log entries by the SMTP email address of the message recipients. Multiple recipients in a single message are logged in a single message tracking log entry. Unexpanded distribution group recipients are logged by using the group's SMTP email address. You can specify multiple recipient using an array of email addresses.
 
 ```yaml
 Type: String[]