Thread:Project:Support desk/Customize Module page

Hi, I need your help. I'm using MediaWiki 1.23.0rc0, PHP 5.4.40 (cgi-fcgi), MySQL 5.5.42-37.1-log, Lua 5.1.5. The question is I failed to know how to "customize" Module page to easily read by adding syntax color (see here). How to make that page to be like this.

Thank you.