PDF version of notebook

[m-noor]

This should be provided so that someone without Python installed can look through the notebook quickly.

[m-noor]

Seems to be a bit buggy with Plotly:
plotly/plotly.py#515
https://nbconvert.readthedocs.io/en/latest/usage.html

[m-noor]

Not resolved even after updating all the Python libraries. As a workaround, an HTML version can be created first from the Jupyter notebook and then converted to PDF in a browser.