Adding image-ling to every single page

Hello,
how should I modify the page-list.php to display on every displayed subpage a image, which is a link to this subpage?

Here is my page, the first 2 links are generated by Your plugin, the another 2 are generated by codex. I need to add this violet “BOOK NOW”.

http://wanderer.ventostudio.eu/mountain-cycling/

http://wordpress.org/plugins/page-list/