Added the actual notification part of #27

PlexRequests.Services/Interfaces/INotification.cs

@@ -36,7 +36,12 @@ namespace PlexRequests.Services.Interfaces
         string NotificationName { get; }
 
         Task NotifyAsync(NotificationModel model);
-
+        /// <summary>
+        /// Sends a notification to the user, this is usually for testing the settings.
+        /// </summary>
+        /// <param name="model">The model.</param>
+        /// <param name="settings">The settings.</param>
+        /// <returns></returns>
         Task NotifyAsync(NotificationModel model, Settings settings);
     }
 }