root/pypi: links for nano-duration

root/pypi nano_duration-2.0.0.tar.gz
root/pypi nano_duration-2.0.0-py3-none-any.whl
root/pypi nano_duration-0.1.2.tar.gz
root/pypi nano_duration-0.1.2-py3-none-any.whl
root/pypi nano_duration-0.1.0.tar.gz
root/pypi nano_duration-0.1.0-py3-none-any.whl