Wanna write a documentation website for your project... And feeling dull to install and create a lot of pages and configure settings and servers... in (you guessed it) WordPress or some Wiki software?
Let's mash that all up, I've a better and easier solution for you! It just requires you to have... guess what? Some knowledge of HTML & CSS, or may be JavaScript so that you can customize the front-end with what you want!
And interestingly, you'll have to maintain only the files that really belong of your documentation... What do I mean? Seen those folders... wp-includes, wp-admin... with a lot of functions you don't know whither they come? Ufff!
If you're developing a project like... umm... let's write in bullets: