Update README.md

README.md

@@ -3,7 +3,16 @@ title: Email Gatekeeper RL
 emoji: 📧
 colorFrom: blue
 colorTo: indigo
-sdk: gradio
+sdk: docker
 pinned: false
-sdk_version: 6.11.0
----
+---
+
+# 📧 Email Gatekeeper — RL Environment Demo
+**Meta x PyTorch Hackathon** | Gymnasium-based email triage agent
+
+This space runs a reinforcement learning environment for email classification using a Dockerized Gradio interface.
+
+### How to run:
+1. Select the task difficulty (Easy, Medium, Hard).
+2. Click on **Run Episode**.
+3. View the agent's performance and cumulative reward.