loongson/pypi: links for markdown-table

loongson/mirror markdown-table-2020.12.3.tar.gz
loongson/mirror markdown-table-2020.7.1.tar.gz
loongson/mirror markdown-table-2019.4.13.tar.gz
loongson/mirror markdown_table-2019.4.13-py2.py3-none-any.whl
loongson/mirror markdown-table-2019.4.12.tar.gz
loongson/mirror markdown_table-2019.4.12-py2.py3-none-any.whl