Documentation

Hi, sorry for jumping in randomly with an issue, but I've been using fusepy on a project and wondered if the maintainers would be interesting in contributions that improve the documentation pages?

I found the documentation at http://fusepy.readthedocs.io/en/latest/index.html but had to do a lot of trial-and-error to work out how the package and the examples work. (I understand how difficult it is to find time for these things so that's not meant as a criticism)

(I noticed the readthedocs pages are not part of the repo though?)_