Intro.md

@@ -4,7 +4,7 @@ Copy and paste these commands to start with a working ExaHyPE application and in
 
     git clone https://gitlab.lrz.de/exahype/ExaHyPE-Engine
     cd ExaHyPE-Engine
-    ./Submodules/updateSubmodules
+    ./Submodules/updateSubmodules.sh
 
 Now you are ready to follow the Tutorial you can find in the wiki.
 After the simulation finished you will find some files with the suffix .vtk in The folder ApplicationExamples/Euler/Euler_ADERDG, which you can open in Paraview.