1 - explanations for remaining keywords
3 - find better bold <, >, \, {, }
5 - snapping-in explanation starts
7 - \arrGOO{} adds unwanted indentation
12 - usage of the three \retvals
18 - multiple return values mentioned
20 - arg* vs. args (list)
24 - talking metavariables
26 - lexical vs. dynamic binding
28 - errors/conditions always mentioned as \kwd{}
30 - applicability of declare