Merge pull request #56 from nagelt/JOSS

Added Acknowledgements.

docs/papers/joss/paper.md

@@ -342,6 +342,9 @@ in similar contexts where these concepts are considered relevant.
 This research was conducted in the framework of the `PLEIADES` project,
 which is supported financially by the French Alternative Energies and
 Atomic Energy Commission (CEA), Électricité de France (EDF) and
-Framatome.
+Framatome. 
+TN acknowledges funding provided by the Federal Ministry for 
+Education and Research (BMBF) under grant 03G0927B for the DigBen project
+and thanks Projektträger Jülich (PtJ) for support.
 
 # References