Hi!
I hope this finds you with good health. I do writing for a living, as, you can imagine, what else would a teacher be doing with his/her life, if writing was not a part of it? I have helped my students write essays, and official letters. And, yes, I know how Wikipedia works. I have done some editing myself on the Wikipedia. That should not be a difficult task, at all.
Perhaps the more difficult part of your task is the content, in and of itself, of the writing, and, as, I mentioned previously, I can get this done at highly satisfying rates, on time and almost seamlessly.
Regards!