root/pypi: links for s4dl

root/pypi s4dl-0.3.1.tar.gz
root/pypi s4dl-0.3.1-py3-none-any.whl
root/pypi s4dl-0.3.0.tar.gz
root/pypi s4dl-0.3.0-py3-none-any.whl
root/pypi s4dl-0.1.0.tar.gz
root/pypi s4dl-0.1.0-py3-none-any.whl