Fix setuptools install_requires errors

I've recently created a project that uses your fusepy library.  For some reason, when I specify fusepy 2.0.1 as a dependency by including it in the `install_requires` list in setup.py, `python setup.py install` for my project fails with the following error message:

    error: README: No such file or directory

When I use a version of your project with the patch included in this pull request, it works fine.  If possible, can you merge in this patch and update the pypi version of fusepy with it?  If you know of another way to fix my issue, please let me know.  Thanks!