root/pypi: links for voxtra

root/pypi voxtra-0.1.0b2.tar.gz
root/pypi voxtra-0.1.0b2-py3-none-any.whl
root/pypi voxtra-0.1.0b1.tar.gz
root/pypi voxtra-0.1.0b1-py3-none-any.whl
root/pypi voxtra-0.1.0a1.tar.gz
root/pypi voxtra-0.1.0a1-py3-none-any.whl