[handbook] Mention make before running tutorial_coupled.

At least one of our guests had difficulties with that.


git-svn-id: svn://svn.iws.uni-stuttgart.de/DUMUX/dumux/trunk@12639 2fb0f335-1f38-0410-981e-8018bf24f1b0

doc/handbook/tutorial-coupled.tex

@@ -360,11 +360,10 @@ to make only some small changes in the tutorial files.
 \begin{enumerate}
 
 \item \textbf{Running the Program} \\
-  To get an impression what the results should look like you can first run the original version of 
-the coupled tutorial model by typing  \texttt{./tutorial\_coupled}. 
+To get an impression what the results should look like you can compile and run the original version of 
+the coupled tutorial model by typing \texttt{make tutorial\_coupled} followed by \texttt{./tutorial\_coupled}.
 Note, that the time-step size is automatically adapted during the simulation. 
-For the visualization of the results using ParaView please refer to section \ref{quick-start-guide}.
-
+For the visualization of the results using ParaView, please refer to section \ref{quick-start-guide}.
 
 \item \textbf{Changing the Model Domain and the Boundary Conditions} \\
   Change the size of the model domain so that you get a rectangle with