loongson/pypi: links for pycon-demo-library-python

loongson/mirror pycon_demo_library_python-0.9.9.tar.gz
loongson/mirror pycon_demo_library_python-0.1.2.tar.gz
loongson/mirror pycon_demo_library_python-0.1.1.tar.gz
loongson/mirror pycon_demo_library_python-0.1.0.tar.gz