Update README.md

Author: pythonlessons

README.md

@@ -5,6 +5,7 @@
 PPO and PPO_CNN agents playing Pong-v0 game:<br>
 ![PPO agent](11_Pong-v0_PPO/gameplay.gif)
 ![PPO CNN agent](11_Pong-v0_PPO/gameplay_CNN.gif)
+![LunarLander-v2_PPO](https://github.com/pythonlessons/Reinforcement_Learning/blob/master/LunarLander-v2_PPO/gameplay.gif)
 
 1. [Deep Q Learning tutorial (DQN)](https://pylessons.com/CartPole-reinforcement-learning/)