Cleanup Python Notebooks with RMD

[jameshalgren]

The python Jupyter notebooks in the repository can create version bloat as they save the outputs. Autosave has been disabled for the two notebooks presently in the repository and this should probably be the standard going forward.

A further improvement (documented as this issue) could be to switch to a mark-down style development of the notebooks with better versioning than the .json used natively for Jupyter notebooks.

This link provides the background and some potential paths for implementation:
https://towardsdatascience.com/version-control-with-jupyter-notebooks-f096f4d7035a