loongson/pypi: links for platea

loongson/mirror platea-0.3.tar.gz
loongson/mirror platea-0.3-cp37-cp37m-macosx_10_9_x86_64.whl
loongson/mirror platea-0.0.1.tar.gz
loongson/mirror platea-0.0.1-py3-none-any.whl