loongson/pypi: links for demo-example-pkg

loongson/mirror Demo-example-pkg-0.0.3.tar.gz
loongson/mirror Demo_example_pkg-0.0.3-py2-none-any.whl
loongson/mirror Demo-example-pkg-0.0.1.tar.gz
loongson/mirror Demo_example_pkg-0.0.1-py2-none-any.whl