Add a reference to the Jupyter paper

[akhmerov]

I believe the jupyter notebook paper is nowhere to be found in the jupyterverse. Perhaps add it to the website?

[choldgraf]

+1 I agree - there should be a location where all of the jupyter-based publications are listed and which pieces of tech they refer to.

[sunnyjain15699]

I will add it. I will need some guidelines though. Can I get this ticket ?