Update README.md

README.md

@@ -1,7 +1,14 @@
 # GES-comp-echem
+> [!WARNING]
+> As of October 6<sup>th</sup> 2023, the library development is discontinued.
 
 ![Tests](https://github.com/GES-compchem/GES-comp-echem/actions/workflows/tests.yml/badge.svg)
 
 The `GES-comp-echem` library is a simple interface for carrying out computational chemistry calculations with a number of computational chemistry programs.
 
-The documentation of the library can be found [here](https://ges-compchem.github.io/GES-comp-echem/).
+The documentation of the library can be found [here](https://ges-compchem.github.io/GES-comp-echem/).
+
+# Credits
+  * **Code architecture and idea:** Mattia F. Palermo (2021-2023)
+  * **Core developer:** Luca Babetto (2021-2023)
+  * **Developer:** Pierpaolo Pravatto (2022-2023)