root/pypi: links for skoot

root/pypi skoot-0.20.0.tar.gz
root/pypi skoot-0.20.0-cp37-cp37m-manylinux1_x86_64.whl
root/pypi skoot-0.20.0-cp36-cp36m-manylinux1_x86_64.whl
root/pypi skoot-0.20.0-cp35-cp35m-manylinux1_x86_64.whl