Thanks for your application. And yeah, as Stan says, the best way is to start contributing. If you have programming knowledge you can help out documenting the code or the more programming related things on the wiki. If not, then there are certainly other things which needs to be documented as well. How to play the game and how to use the scenario editor (which is about to see changes soon, so that part of the documentation certainly needs to be updated). Is there something in particular that you are interested in?