loongson/pypi: links for curtains

loongson/mirror Curtains-0.3.1.tar.gz
loongson/mirror Curtains-0.3.0.post1.tar.gz
loongson/mirror Curtains-0.3.0.tar.gz
loongson/mirror Curtains-0.2.0.tar.gz
loongson/mirror Curtains-0.1.0.post1.tar.gz
loongson/mirror Curtains-0.1.0.tar.gz