root/pypi: links for r4c

root/pypi r4c-0.2.0.tar.gz
root/pypi r4c-0.2.0-py3-none-any.whl
root/pypi r4c-0.1.0.tar.gz
root/pypi r4c-0.1.0-py3-none-any.whl
root/pypi r4c-0.0.1.tar.gz
root/pypi r4c-0.0.1-py3-none-any.whl