root/pypi: links for metashade

root/pypi metashade-0.6.0a2.tar.gz
root/pypi metashade-0.6.0a2-py3-none-any.whl
root/pypi metashade-0.6.0a1.tar.gz
root/pypi metashade-0.6.0a1-py3-none-any.whl