root/pypi: links for gwnrtools

root/pypi gwnrtools-2021.9.20.tar.gz
root/pypi gwnrtools-2021.9.20-py3-none-any.whl
root/pypi gwnrtools-2020.10.30.tar.gz
root/pypi gwnrtools-2020.10.30-py3-none-any.whl