root/pypi: links for extra-proposal

root/pypi extra_proposal-0.1.3.tar.gz
root/pypi extra_proposal-0.1.3-py3-none-any.whl
root/pypi extra_proposal-0.1.2.tar.gz
root/pypi extra_proposal-0.1.2-py3-none-any.whl
root/pypi extra_proposal-0.1.1.tar.gz
root/pypi extra_proposal-0.1.1-py3-none-any.whl
root/pypi extra_proposal-0.1.tar.gz
root/pypi extra_proposal-0.1-py3-none-any.whl