--- a/handouts/ho08.tex	Tue Jun 14 11:41:48 2016 +0100
+++ b/handouts/ho08.tex	Thu Jul 14 13:10:01 2016 +0100
@@ -5,6 +5,8 @@
 \usepackage{../graphics}
 \usepackage{amssymb}
 
+% modern compilers are different
+% https://channel9.msdn.com/Blogs/Seth-Juarez/Anders-Hejlsberg-on-Modern-Compiler-Construction
 
 \begin{document}
 \lstset{morekeywords={def,if,then,else,write,read},keywordstyle=\color{codepurple}\bfseries}