Create annotated Starterkit

site/models/album.php

@@ -1,5 +1,15 @@
 <?php
 
+/**
+ * Page models extend Kirby's default page object. 
+ * In page models you can define methods that are then available everywhere in Kirby where you call a page of the extended type.
+ * In this example, we define the cover method that either returns an image selected in the cover field
+ * or the first image in the folder.
+ * You can see the method in use in the `home.php`, `photography.php` and `album.php` templates 
+ * and in the `site/blueprints/sections/albums.yml` image query
+ * More about models: https://getkirby.com/docs/guide/templates/page-models
+ */
+
 class AlbumPage extends Page
 {
     public function cover()