loongson/pypi: links for sphinxcontrib-github

loongson/mirror sphinxcontrib-github-0.1.3.tar.gz
loongson/mirror sphinxcontrib-github-0.1.2.tar.gz
loongson/mirror sphinxcontrib-github-0.1.1.tar.gz
loongson/mirror sphinxcontrib-github-0.1.0.tar.gz