Creating a new page is easy! You can either use the box on the side of the page, by entering a title, and then clicking Create a new page called:. Voilą! You can now just creating the content!
Don't worry about messing something up. You can't break anything. And don't worry too much about markup. The great thing about a wiki is anyone can work on it. So, someone else can come along and markup the page correctly.
Just make sure you add a section at the end of your page with this code:
!!Contributor
Author: {Your name}(:nl:)
And that's it!