loongson/mirror: links for json2latex

loongson/mirror json2latex-0.0.3.tar.gz
loongson/mirror json2latex-0.0.3-py3-none-any.whl
loongson/mirror json2latex-0.0.2.tar.gz
loongson/mirror json2latex-0.0.2-py3-none-any.whl