Include README.rst in distribution manifest
Include README.rst in distribution manifest

When installing from PyPI, the command fails with:

    No such file or directory: '/path/to/performanceplatform-collector/README.rst'

I think this is because the README isn't distributed with the module
because it's not included in the manifest file.

alphagov/performanceplatform-collector,alphagov/performanceplatform-collector,alphagov/performanceplatform-collector