diff --git a/projects/instructions.tex b/projects/instructions.tex
index ba663ec..12f2b3e 100644
--- a/projects/instructions.tex
+++ b/projects/instructions.tex
@@ -37,6 +37,7 @@
       format) that you use in your slides (your code can also generate
       additional figures). The code must be comprehensible by a third
       person (use proper and consistent variable and function names).
+      XXX Find out what RTFM means, act accordingly! chapter 1 Box 1.7, Code-style chapter XXX
 
       \vspace{1ex}