created readme file

README.md

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+---
+tags:
+- ml-agents
+- reinforcement-learning
+- ppo
+- unity
+- Pyramids
+---
+%%writefile README.md
+
+# PPO Pyramids Agent
+
+This model was trained using PPO with Unity ML-Agents in the Pyramids environment.
+
+## Environment
+Pyramids
+
+## Algorithm
+PPO (Proximal Policy Optimization)
+
+## Training
+The agent was trained using Unity ML-Agents and Hugging Face Deep RL course materials.
+
+## Files
+- `Pyramids.onnx` — trained policy network
+
+## Author
+Ryan Aparicio