Fixed small error

git-svn-id: svn://svn.iws.uni-stuttgart.de/DUMUX/dumux/trunk@9069 2fb0f335-1f38-0410-981e-8018bf24f1b0

doc/handbook/tutorial-coupled.tex

@@ -367,7 +367,7 @@ For the visualization of the results using paraview please refer to section \ref
   \texttt{tutorialproblem\_coupled.hh} so that water enters from the
   bottom and oil is extracted from the top boundary. The right and the
   left boundary should be closed for water and oil fluxes. \\
-  Note, that the value has to be positive for inflow and negative for outflow.  
+  Note, that the value has to be positive for outflow and negative for inflow.  
   Compile the main file by typing \texttt{make tutorial\_coupled} and
   run the model as explained above.