root/pypi: links for alerta-slack

root/pypi alerta-slack-0.3.3.tar.gz
root/pypi alerta-slack-0.3.1.tar.gz
root/pypi alerta-slack-0.1.4.tar.gz
root/pypi alerta-slack-0.1.3.tar.gz
root/pypi alerta-slack-0.1.2.tar.gz