loongson/pypi: links for chemlg

loongson/mirror chemlg-0.9.tar.gz
loongson/mirror chemlg-0.9-py3-none-any.whl
loongson/mirror chemlg-0.6.0.tar.gz
loongson/mirror chemlg-0.6.0-py2-none-any.whl
loongson/mirror chemlg-0.5.0.tar.gz
loongson/mirror chemlg-0.5.0-py3-none-any.whl