Update README.md (#413)

Added the ExaOcean grant identified and the "Supported by the European Union - NextGenerationEU." clause that they would like us to display.

Author: danielru

README.md

@@ -105,7 +105,7 @@ The JU receives support from the European Union's Horizon 2020 research
 and innovation programme and Belgium, France, Germany, and Switzerland.
 This project also received funding from the [German Federal Ministry of
 Education and Research](https://www.bmbf.de/bmbf/en/home/home_node.html)
-(BMBF) grant 16HPC047. The project also received help from the
+(BMBF) grants  16HPC047 and 16ME0679K. Supported by the European Union - NextGenerationEU. The project also received help from the
 [Helmholtz Platform for Research Software Engineering - Preparatory
 Study (HiRSE_PS)](https://www.helmholtz-hirse.de/).