loongson/pypi: links for jupyter-sigplot

loongson/mirror jupyter_sigplot-0.2.0.tar.gz
loongson/mirror jupyter_sigplot-0.1.3.tar.gz
loongson/mirror jupyter_sigplot-0.1.2.tar.gz
loongson/mirror jupyter_sigplot-0.1.2-py2.7.egg
loongson/mirror jupyter_sigplot-0.1.1.tar.gz
loongson/mirror jupyter_sigplot-0.1.0.tar.gz
loongson/mirror jupyter_sigplot-0.1.0a0.tar.gz