[Notifier] Tweak some phpdocs

Author: fabpot

Channel/EmailChannel.php

@@ -46,6 +46,9 @@ public function __construct(TransportInterface $transport = null, MessageBusInte
         $this->envelope = $envelope;
     }
 
+    /**
+     * @param EmailRecipientInterface $recipient
+     */
     public function notify(Notification $notification, RecipientInterface $recipient, string $transportName = null): void
     {
         $message = null;

Channel/SmsChannel.php

@@ -22,6 +22,9 @@
  */
 class SmsChannel extends AbstractChannel
 {
+    /**
+     * @param SmsRecipientInterface $recipient
+     */
     public function notify(Notification $notification, RecipientInterface $recipient, string $transportName = null): void
     {
         $message = null;