root/pypi: links for create-serial

root/pypi create_serial-0.2.1.tar.gz
root/pypi create_serial-0.2.1-py3-none-any.whl
root/pypi create_serial-0.2.0.tar.gz
root/pypi create_serial-0.2.0-py3-none-any.whl
root/pypi create_serial-0.1.0.tar.gz
root/pypi create_serial-0.1.0-py3-none-any.whl