made listings look nicer and set draft mode

thesis/main.tex

@@ -1,4 +1,4 @@
-\documentclass[a4paper,12pt]{scrartcl}
+\documentclass[a4paper,12pt,draft]{scrartcl}
 \usepackage[utf8]{inputenc} 
 \usepackage{graphicx} 
 \usepackage{amssymb, amsthm}
@@ -12,6 +12,10 @@
 %\usepackage{struktex}
 \usepackage{qcircuit}
 \usepackage{adjustbox}
+%\usepackage{tgcursor}
+%\usepackage{courier}
+%\lstset{basicstyle=\fontfamily{qcr}\selectfont}
+\lstset{basicstyle=\ttfamily}
 
 \geometry{left=2.5cm,right=2.5cm,top=2.5cm,bottom=2.5cm}