appendOutputTo method is using sendOutputTo method only

Author: gauravmak

scheduling.md

@@ -183,7 +183,7 @@ Using the `emailOutputTo` method, you may e-mail the output to an e-mail address
              ->sendOutputTo($filePath)
              ->emailOutputTo('[email protected]');
 
-> {note} The `emailOutputTo` and `sendOutputTo` methods are exclusive to the `command` method and are not supported for `call`.
+> {note} The `emailOutputTo`, `sendOutputTo` and `appendOutputTo` methods are exclusive to the `command` method and are not supported for `call`.
 
 <a name="task-hooks"></a>
 ## Task Hooks