Some people are not sure if contributing to such a wiki is really for them, or too complicated. In that case, the answer is simple - Make one paragraph. If you want to give it a shot, then just make 1 (one) paragraph. You sure can do more, but it's okay to start with one to get a taste. As a student of the Austrian school, you are most likely studying some book or article. The number of places to improve things is unlimited, so just find something that fits and you are interested in. And then...