Add JOSS banner

Author: SCiarella

README.md

@@ -6,6 +6,7 @@
 [![FAIR checklist badge](https://fairsoftwarechecklist.net/badge.svg)](https://fairsoftwarechecklist.net/v0.2?f=31&a=30110&i=21202&r=132)
 [![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.11447920.svg)](https://doi.org/10.5281/zenodo.11447920)
 [![RSD](https://img.shields.io/badge/rsd-speckcn2-00a3e3.svg)](https://research-software-directory.org/software/speckcn2)
+[![status](https://joss.theoj.org/papers/57d48f7e179360b9f5193045ce8270be/status.svg)](https://joss.theoj.org/papers/57d48f7e179360b9f5193045ce8270be)
 
 ![MALES banner](https://raw.githubusercontent.com/MALES-project/SpeckleCn2Profiler/main/src/speckcn2/assets/logo_on_white.png#gh-light-mode-only)
 ![MALES banner](https://raw.githubusercontent.com/MALES-project/SpeckleCn2Profiler/main/src/speckcn2/assets/logo_on_black.png#gh-dark-mode-only)