root/pypi: links for xpubsub

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