Update README.md

README.md

@@ -26,6 +26,8 @@ model-index:
   To learn to use this model and train yours check Unit 4 of the Deep Reinforcement Learning Course: https://huggingface.co/deep-rl-course/unit4/introduction
 
   # **Training hyperparameters**
+
+  ```python
   cartpole_hyperparameters = {
     "h_size": 8,
     "n_training_episodes": 4000,
@@ -37,4 +39,5 @@ model-index:
     "state_space": s_size,
     "action_space": a_size,
 }
+```