Also use sans-serif font on document's title

tutorial/header.tex

@@ -13,6 +13,10 @@
 \usepackage{sectsty}
 \allsectionsfont{\sffamily \bfseries}
 
+% Use sans-serif font for title page
+\usepackage{titling}
+\renewcommand{\maketitlehooka}{\sffamily}
+
 % Use monospaced font for URLs
 \urlstyle{tt}