Edit README.md

README.md

@@ -16,10 +16,11 @@ This repository contains my individual work for the **Hands-On Reinforcement Lea
   <p align="center">
   ![Training Plot](/images/train_rewards.png)  
 </p>
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+<p style="text-align: center;">
   <b>(Figure: Total rewards increase per episode, indicating successful learning.)</b>
 </p>
 
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 ### Model Saving  
 - The trained model is saved as: `reinforce_cartpole.pth`.