Make each chapter introduction stand out (#179)

* Add bibliography to the ToC

* Add a list of tables at the end of the document

It needed shorter description that would fit.

* Add list of figures

* Add table of figures

* Fix a typo in short figure description

* Make each chapter introduction stand out

Not written for each chapter yet, but checking if that is something we
want.

* Increase numwidth in list of figures

Prevents over-run of figure number and text

* Use semibold in chapters intro

Looks like a good compromise for now.

* Add comments

* Add color coding to flow charts

This will hopefully allow easier reading by identifying start and end
point more easily

book/basics/how-sourdough-works.tex

@@ -1,8 +1,10 @@
+\begin{quoting}
 In this chapter, we will cover the basics of how sourdough ferments.
 First, we will look at the enzymatic reactions that take place
 in your flour the moment you add water, triggering the fermentation
 process. Then, in order to understand this process better, we will
 learn more about the yeast and bacterial microorganisms involved.
+\end{quoting}
 
 \begin{figure}[!htb]
   \includegraphics[width=\textwidth]{infographic-enzymes}