Simplify tables markup

- Markup is definitely simpler.
- Will not be built separately in a pdf anymore.
- Fixed some typo as well
- Relatively coherent look
- Can be better, some sizes are relatively arbitrary

book/tables/table-flat-bread-pancake-recipe.tex

@@ -1,14 +1,12 @@
-\input{./vars}
-
-\begin{document}
-\begin{tabular}{lll}
+%TODO: last line is not great
+\begin{tabular}{@{}>{\bfseries} p{0.15\textwidth}rlrl@{}}
 \toprule
-                           & \textbf{Flat breads} & \textbf{Pancakes}                        \\ \midrule
-\textbf{Flour}             & 100g                               & 100g                       \\ \midrule
-\textbf{Water}             & 100g (100\%)                       & 300g (300\%)               \\ \midrule
-\textbf{Sourdough starter} & 5-20g (5-20\%)                     & 5-20g (5-20\%)             \\ \midrule
-\textbf{Salt}              & 2g (2\%)                           & 2g (2\%)                   \\ \midrule
-\textbf{When bake?}        & Dough increased 50 percent in size & Bubbles
-visible on surface \\ \bottomrule
+      & \multicolumn{2}{c}{\thead{Flat breads}} & \multicolumn{2}{c}{\thead{Pancakes}} \\ \midrule
+Flour             & 100g   &           & 100g   &           \\ \midrule
+Water             & 100g   & (100\%)   & 300g   & (300\%)   \\ \midrule
+Sourdough starter & 5--20g & (5--20\%) & 5--20g & (5--20\%) \\ \midrule
+Salt              & 2g     & (2\%)     & 2g     & (2\%)     \\ \midrule
+Bake when?        & \multicolumn{2}{c}{Dough increased by 50\% in size.}
+                  & \multicolumn{2}{c}{Bubbles visible on surface.}\\
+\bottomrule
 \end{tabular}
-\end{document}