classkey=Articles or Article?

Hi i'm trying to get Newspublisher to work with Articles 1.7.2
On the guide pages (http://bobsguides.com/newspublisher-tutorial.html) it states

&classkey — `Articles`

but the frontend page crashes to a white page. when checking then articles class files i noticed there is no class Articles but there is a class Article. (without the s).
Maybe the guides page is wrong?

Rdg

It's definitely Article. Thanks for pointing that out.

I updated the docs.