DI-engine/dizoo/overcooked/README.md

This is the overcooked-ai environment compatiable to DI-engine.

The origin code is referenced on [Overcooked-AI](https://github.com/HumanCompatibleAI/overcooked_ai), which is a benchmark environment for fully cooperative human-AI task performance, based on the wildly popular video game [Overcooked](http://www.ghosttowngames.com/overcooked/).