root/pypi: links for grc

root/pypi grc-1.0.0.post3.tar.gz
root/pypi grc-1.0.0.post3-py3-none-any.whl
root/pypi grc-1.0.0.post2-py3-none-any.whl
root/pypi grc-1.0b4.tar.gz
root/pypi grc-1.0b3.tar.gz
root/pypi grc-1.0b2.tar.gz
root/pypi grc-1.0b1.tar.gz