[wannesm]

I can recommend http://jupyter-contrib-nbextensions.readthedocs.io/en/latest...

[mFixman]

Also Table of Contents 2 [1] is useful, since it can numerate headings and subheadings in a natural way.

Jupyter extensions are incredibly powerful, and I don't know how I used to do data analysis before finding them.

[1] http://jupyter-contrib-nbextensions.readthedocs.io/en/latest...