Missing README.md file

[fsimkovic]

Encountered this issue when installing with pip install ipyext

Collecting ipyext
  Using cached https://files.pythonhosted.org/packages/1e/eb/c0ca3aec31d5cd658d3ad9fb4427e36831eba1320e5e4fa9cb7f86e33345/ipyext-0.1.0.zip
    Complete output from command python setup.py egg_info:
    !!! DON'T UPLOAD TO PyPI, DESCRIPTION IS WRONG FORMAT
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/tmp/pip-install-_yZbeC/ipyext/setup.py", line 22, in <module>
        with io.open('README.md', encoding="utf-8") as f:
    IOError: [Errno 2] No such file or directory: 'README.md'

Could be fixed by including a MANIFEST.in file