big improvements to tutorial, especially page 2 (matrix arithmetic).
add placeholders for some 'special topic' pages.
diff --git a/doc/C03_TutorialArrayClass.dox b/doc/C03_TutorialArrayClass.dox
index 04ecfde..8944c06 100644
--- a/doc/C03_TutorialArrayClass.dox
+++ b/doc/C03_TutorialArrayClass.dox
@@ -1,8 +1,11 @@
namespace Eigen {
-/** \page TutorialArrayClass Tutorial - The Array Class
+/** \page TutorialArrayClass Tutorial page 3 - The Array Class
\ingroup Tutorial
+\li \b Previous: \ref TutorialMatrixArithmetic
+\li \b Next: (not yet written)
+
This tutorial aims to provide an overview and explanations on how to use Eigen's \b Array class
\b Table \b of \b contents