Added AUTHORS file

AUTHORS.md

+# AUTHORS
+
+This file lists all the individuals who have contributed to the development of the MOBILES RecSys project.
+
+## Principal Investigators
+- **Madjid Sadallah** 
+- **Marie Lefevre** 
+
+## Institutional Support
+- **University Lyon 1 / LIRIS, CNRS** - Lyon Research Center for Images and Intelligent Information Systems
+
+## Funding
+This project is supported by the ANR (Agence Nationale de la Recherche, France) under grant number ANR-20-CE38-0009.
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