loongson/pypi: links for snaketex

loongson/mirror SnakeTeX-0.1.3-py3-none-any.whl
loongson/mirror SnakeTeX-0.1.2-py3-none-any.whl
loongson/mirror SnakeTeX-0.1.1-py3-none-any.whl
loongson/mirror SnakeTeX-0.1-py2-none-any.whl