Updated readme to include submodules

Readme.md

@@ -4,24 +4,16 @@ The documentation is on our website:
 http://www.openflipper.org
 
 # Getting Source Code from git
-First clone the repository: 
- git clone https://www.graphics.rwth-aachen.de:9000/OpenFlipper-Free/OpenFlipper-Free.git
+Clone the repository with submodules:   
+ git clone --recursive https://www.graphics.rwth-aachen.de:9000/OpenFlipper-Free/OpenFlipper-Free.git
  
-Enter the directory 
- cd OpenFlipper-Free
- 
-Fetch the submodules:
- git submodule init
- git submodule update
-
 # Required libs: 
-Qt ( >= 4.8.2 ) http://www.qtsoftware.com/downloads 
-OpenGL          http://www.opengl.org
-GLUT            http://www.opengl.org/resources/libraries/glut
-GLEW            http://glew.sourceforge.net
-qwt ( >=6.0 )   optional http://qwt.sourceforge.net/
+Qt ( >= 4.8.2 ) http://www.qtsoftware.com/downloads  
+OpenGL          http://www.opengl.org  
+GLUT            http://www.opengl.org/resources/libraries/glut  
+GLEW            http://glew.sourceforge.net  
+qwt ( >=6.0 )   optional http://qwt.sourceforge.net/  
 
 # Compiling OpenFlipper:
 A detailed compilation manual is available online at:
-http://openflipper.org/Documentation/latest/buildingOpenFlipper.html
-
+http://openflipper.org/Documentation/latest/buildingOpenFlipper.html
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