Update README.md

README.md

@@ -33,5 +33,17 @@ TODO: Add your code
 from stable_baselines3 import ...
 from huggingface_sb3 import load_from_hub
 
+repo_id = "fredchung/ppo-LunarLander-v2" # The repo_id
+filename = "ppo-LunarLander-v2.zip" # The model filename.zip
+
+# For compatibility between pickle protocol 5 vs. 4.
+custom_objects = {
+            "learning_rate": 0.0,
+            "lr_schedule": lambda _: 0.0,
+            "clip_range": lambda _: 0.0,
+}
+
+checkpoint = load_from_hub(repo_id, filename)
+model = PPO.load(checkpoint, custom_objects=custom_objects, print_system_info=True)
 ...
 ```