Consider moving notebook to python script

[jcohenadad]

Some arguments for script vs. notebooks:

• Difficulty to track down changes with git when using notebooks
• No use of interactivity
• Sometimes binaries are pushed on the GitHub repository (when people forget to remove the outputs of the launched notebook)
• Faster computing with script
• More reproducible (no dependency on how cells are run)

Related to #10

Additional resource:

• https://medium.com/@kevin_sossav/difference-between-jupyter-notebooks-and-python-scripts-7c0bfc6c8692
• https://medium.com/@tearth/should-i-use-jupyter-notebooks-or-python-scripts-for-my-next-ml-project-7be0ab2ae57e
• https://learnpython.com/blog/python-scripts-vs-jupyter-notebooks/
• https://www.youtube.com/watch?v=7jiPeIFXb6U