loongson/pypi: links for markdown-checklist

loongson/mirror markdown-checklist-0.4.4.tar.gz
loongson/mirror markdown-checklist-0.4.3.tar.gz
loongson/mirror markdown-checklist-0.4.2.tar.gz
loongson/mirror markdown-checklist-0.4.1.tar.gz
loongson/mirror markdown-checklist-0.4.0.tar.gz
loongson/mirror markdown-checklist-0.3.0.tar.gz
loongson/mirror markdown-checklist-0.2.0.tar.gz
loongson/mirror markdown-checklist-0.1.0.tar.gz