loongson/pypi: links for pretty-upper

loongson/mirror pretty_upper-0.3.1.tar.gz
loongson/mirror pretty_upper-0.3.1-py2.py3-none-any.whl
loongson/mirror pretty_upper-0.3.0.tar.gz
loongson/mirror pretty_upper-0.3.0-py2.py3-none-any.whl
loongson/mirror pretty_upper-0.2.0.tar.gz
loongson/mirror pretty_upper-0.2.0-py2.py3-none-any.whl
loongson/mirror pretty_upper-0.1.0.tar.gz