loongson/pypi: links for mlfromscratch

loongson/mirror mlfromscratch-0.0.4.tar.gz
loongson/mirror mlfromscratch-0.0.3.tar.gz
loongson/mirror mlfromscratch-0.0.2.tar.gz
loongson/mirror mlfromscratch-0.0.1.tar.gz