loongson/pypi: links for sphinx-xml2rfc

loongson/mirror sphinx-xml2rfc-0.1.0.tar.gz
loongson/mirror sphinx_xml2rfc-0.1.0-py3-none-any.whl
loongson/mirror sphinx-xml2rfc-0.1.0rc2.tar.gz
loongson/mirror sphinx_xml2rfc-0.1.0rc2-py3-none-any.whl
loongson/mirror sphinx-xml2rfc-0.1.0rc1.tar.gz
loongson/mirror sphinx_xml2rfc-0.1.0rc1-py3-none-any.whl