Add copyright holder notice

README.md

@@ -78,6 +78,8 @@ cannot be addressed by the research team. See the License section below.
 
 ## 📜 License and Usage Terms
 
+**Copyright © MIH AI B.V.**
+
 ### Model Weights License
 The FinBERT model weights are made available under **CC BY-NC-SA 4.0** 
 (Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International).