updated readme.md

README.md

@@ -24,5 +24,17 @@ model-index:
   This is a trained model of a **PPO** agent playing **LunarLander-v2** using the [stable-baselines3 library](https://github.com/DLR-RM/stable-baselines3).
   
   ## Usage (with Stable-baselines3)
-  TODO: Add your code
-  
+```
+  env = make_vec_env('LunarLander-v2', n_envs=24)
+  model = PPO(
+    policy = 'MlpPolicy',
+    env = env,
+    n_steps = 1024,
+    batch_size = 64,
+    n_epochs = 16,
+    gamma = 0.999,
+    gae_lambda = 0.98,
+    ent_coef = 0.01,
+    verbose=1)
+  model.learn(total_timesteps=500000)
+```