Jean-Didier Totow

I've managed to run some example, located at `https://github.com/instadeepai/Mava/tree/develop/examples/tf/debugging/simple_spread/feedforward/centralised`.

I tested only run_mddpg.py and works successfully. However i'm having difficulty to [retrieve the "executor" ](https://stackoverflow.com/questions/72594771/accessing-executor-methods-after-program-launch)for interacting with the environment