Update README.md

README.md

 # Hydrogen-Real-Gas-Model
 
-In this repository, a new real gas model for hydrogen based on the REFPROP database is provided for OpenFOAM v2012. 
+In this repository, a new real gas model for hydrogen based on the Reference Fluid Thermodynamic and Transport Properties Database (REFPROP) v10.0 is provided for the use in the simulation software OpenFOAM v2012. 
 
 ***
 
@@ -12,7 +12,16 @@ In this repository, a new real gas model for hydrogen based on the REFPROP datab
 
 ## Tutorial
 
-In a tutorial case, the usage of the new real gas model is shown.
+In a tutorial case of the flow through a critical flow Venturi nozzle, the usage of the new real gas model is shown.
+
+For the start of the simulation, do the following steps:
+1. run <blockMesh && extrudeMesh>
+2. run either:
+    a) <sonicFoam> or 
+    b) <decomposePar> and then <mpirun -np 4 sonicFoam -parallel>
+
+For the post-processing, you might need to:
+3. run reconstructPar (if your case was decomposed before) 
 
 ## Acknowledgments
 This work was supported through the Joint Research Project “Metrology infrastructure for high-pressure gas and liquified hydrogen flows”. This project (20IND11 MetHyInfra) has received funding from the EMPIR programme co-financed by the Participating States and from the European Union's Horizon 2020 research and innovation programme.