root/pypi: links for contributors

root/pypi contributors-0.3.0.tar.gz
root/pypi contributors-0.3.0-py2.py3-none-any.whl
root/pypi contributors-0.2.0.tar.gz
root/pypi contributors-0.2.0-py2.py3-none-any.whl
root/pypi contributors-0.1.0.tar.gz
root/pypi contributors-0.1.0-py2.py3-none-any.whl