[Plugin: ProjectList] How to put in my wordpress site?

Hey, I really like the idea of having such a “plugin”, but there is no chance to see how to implement it on my website. It just says, “be able to put it on a page”, but how …?
Is there a command such as <-project-> or something?

Also there are no screenshots and the links on your website doesn’t work. It would be at least cool to see a little feature of the plug.

Thanks a lot!!