Improve thesis, take Suzan's feedback into account

docs/thesis/main.tex

@@ -20,6 +20,7 @@
 \renewcommand{\headrulewidth}{0pt}
 \fancyfoot[C]{\thepage}
 
+% 2-column bibliography
 \makeatletter
 \renewenvironment{thebibliography}[1]
      {\begin{multicols}{2}[\section*{\refname}]%
@@ -72,6 +73,10 @@
  \end{shaded*}
 }
 
+% Section numbering
+\renewcommand\thechapter{\arabic{chapter}}
+\renewcommand\thesection{\thechapter.\arabic{section}}
+\renewcommand\thesubsection{\thesection.\arabic{subsection}}
 
 \begin{document}