Update README.md

README.md

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-  # **ppo** Agent playing **SnowballTarget**
-  This is a trained model of a **ppo** agent playing **SnowballTarget**
-  using the [Unity ML-Agents Library](https://github.com/Unity-Technologies/ml-agents).
-
-  ## Usage (with ML-Agents)
-  The Documentation: https://unity-technologies.github.io/ml-agents/ML-Agents-Toolkit-Documentation/
-
-  We wrote a complete tutorial to learn to train your first agent using ML-Agents and publish it to the Hub:
-  - A *short tutorial* where you teach Huggy the Dog 🐶 to fetch the stick and then play with him directly in your
-  browser: https://huggingface.co/learn/deep-rl-course/unitbonus1/introduction
-  - A *longer tutorial* to understand how works ML-Agents:
-  https://huggingface.co/learn/deep-rl-course/unit5/introduction
-
-  ### Resume the training
-  ```bash
-  mlagents-learn <your_configuration_file_path.yaml> --run-id=<run_id> --resume
-  ```
-
-  ### Watch your Agent play
-  You can watch your agent **playing directly in your browser**
-
-  1. If the environment is part of ML-Agents official environments, go to https://huggingface.co/unity
-  2. Step 1: Find your model_id: KraTUZen/ppo-SnowballTarget
-  3. Step 2: Select your *.nn /*.onnx file
-  4. Click on Watch the agent play 👀
-  
+# ❄️ **PPO Agent on SnowballTarget**
+
+This repository contains a trained **Proximal Policy Optimization (PPO)** agent that plays the **SnowballTarget** environment using the [Unity ML-Agents Library](https://github.com/Unity-Technologies/ml-agents).
+
+---
+
+## 📊 Model Card
+
+**Model Name:** `ppo-SnowballTarget`  
+**Environment:** `SnowballTarget` (Unity ML-Agents)  
+**Algorithm:** PPO (Proximal Policy Optimization)  
+**Performance Metric:**  
+- Achieves stable performance in target-hitting tasks  
+- Demonstrates convergence to an effective policy  
+
+---
+
+## 🚀 Usage (with ML-Agents)
+
+Documentation: [ML-Agents Toolkit Docs](https://unity-technologies.github.io/ml-agents/ML-Agents-Toolkit-Documentation/)
+
+```bash
+mlagents-learn <your_configuration_file_path.yaml> --run-id=<run_id> --resume
+```
+
+```python
+# Example: loading the trained PPO model
+# (requires Unity ML-Agents setup)
+model_id = "KraTUZen/ppo-SnowballTarget"
+# Select your .nn or .onnx file from the repo
+```
+
+---
+
+## 🧠 Notes
+- The agent is trained using **PPO**, a robust on-policy algorithm widely used in Unity ML-Agents.  
+- The environment involves **throwing snowballs at targets**, requiring precision and timing.  
+- The trained model is stored as `.nn` or `.onnx` files for direct Unity integration.  
+
+---
+
+## 📂 Repository Structure
+- `SnowballTarget.nn` / `SnowballTarget.onnx` → Trained PPO policy  
+- `README.md` → Documentation and usage guide  
+
+---
+
+## ✅ Results
+- The agent learns to consistently hit targets with snowballs.  
+- Demonstrates stable training and effective policy convergence using PPO.  
+
+---
+
+## 🔎 Environment Overview
+- **Observation Space:** Continuous (agent position, target position, environment state)  
+- **Action Space:** Continuous (throwing angle, force)  
+- **Objective:** Maximize hits on targets with snowballs  
+- **Reward:** Positive reward for successful hits, penalties for misses  
+
+---
+
+## 📚 Learning Highlights
+- **Algorithm:** PPO (Proximal Policy Optimization)  
+- **Update Rule:** Clipped surrogate objective to ensure stable updates  
+- **Strengths:** Robust, stable, widely used in Unity ML-Agents  
+- **Limitations:** Requires careful tuning of hyperparameters (clip ratio, learning rate, batch size)  
+
+---
+
+## 🎮 Watch Your Agent Play
+You can watch your agent **directly in your browser**:
+
+1. Visit [Unity ML-Agents on Hugging Face](https://huggingface.co/unity)  
+2. Find your model ID: `KraTUZen/ppo-SnowballTarget`  
+3. Select your `.nn` or `.onnx` file  
+4. Click **Watch the agent play 👀**