Build is working, now to make a nice notebook

[baudren]

I think the presentation is really important. Here are some ideas

• [ ] We can separate different chapters into different notebooks for greater clarity, with links to them in the front one.
• [ ] add text to indicate which parts to modify and re run to see how it works
• [ ] use proper markdown to highlight stuff (titles are ## something, watch the space)
• [ ] reference to our lectures