I visited the link http://www.jqueryeditor.com http://www.jqueryeditor.com and read the page and have no idea what it is about. Use case? Example? Then someone

I visited the link http://www.jqueryeditor.com http://www.jqueryeditor.com and read the page and have no idea what it is about. Use case? Example? Then someone might take a look - me I've spent more than enough time on it already.