Update README.md

Author: danielru

README.md

@@ -95,8 +95,8 @@ The scripts to reproduce the figures from this paper can be found [here](scripts
  - figure_13-14.py with command line parameter 13 or 14 produces files figure_13.pdf and figure_14.pdf
  - figure_15-16.py with command line parameter 15 or 16 produces files figure_15.pdf and figure_16.pdf
 
-![image](https://github.com/user-attachments/assets/9a0c18d7-1238-4e05-9d50-5640a61a9fd5)
-   
+[![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.14524761.svg)](https://doi.org/10.5281/zenodo.597824)
+
 ## Acknowledgements
 
 This project has received funding from the [European High-Performance