Move table of contents before the Preface.

comprehensive-gpl-guide.tex

@@ -46,8 +46,11 @@ own copyright and licensing notice.  The notice above is for the entire work,
 and includes all.
 }
 \end{center}
+
 \end{titlepage}
 
+\tableofcontents
+
 \chapter{Preface}
 
 This tutorial is the culmination of nearly a decade of studying and writing
@@ -71,8 +74,6 @@ material.  Please be aware that during the actual courses, class discussion
 supplements this printed curriculum.  Simply reading it is not equivalent to
 attending the course.
 
-\tableofcontents
-
 \mainmatter
 
 \input{gpl-lgpl}