root/pypi: links for ytduration

root/pypi ytduration-0.4.tar.gz
root/pypi YtDuration-0.4-py3-none-any.whl
root/pypi ytduration-0.3.tar.gz
root/pypi YtDuration-0.3-py3-none-any.whl
root/pypi ytduration-0.1.tar.gz
root/pypi YtDuration-0.1-py3-none-any.whl