Update README.md

Meshes/README.md

 # Meshes 
 The mesh data in the various folders are only saved here to be able to plot the 
 data either with `paraview` or the script found in the folder `Plotscript`.
-They are produced by the simulation class as output and are not reused. 
-Note that the scripts in `Plotscript` are courtesy of Jim Magiera. 
+They are produced by the simulation class as output and are not reused.