Update README.md

Updated README.md

README.md

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----
-title: Template Final Assignment
-emoji: 🕵🏻‍♂️
-colorFrom: indigo
-colorTo: indigo
-sdk: gradio
-sdk_version: 5.25.2
-app_file: app.py
-pinned: false
-hf_oauth: true
-# optional, default duration is 8 hours/480 minutes. Max duration is 30 days/43200 minutes.
-hf_oauth_expiration_minutes: 480
----
-
-Check out the configuration reference at https://huggingface.co/docs/hub/spaces-config-reference
+# GAIA Benchmark Agent with LangGraph
+
+This project implements an agent using the LangGraph framework to solve the GAIA benchmark tasks provided by the Hugging Face Agents Course (Unit 4).
+
+✅ Uses LangChain + LangGraph  
+✅ Handles 20 benchmark questions  
+✅ Submits answers for scoring via Hugging Face leaderboard
+
+## How to run
+
+1. Clone this repo and push it as a Hugging Face Space (public).
+2. Install the dependencies.
+3. Launch the Space and log in to Hugging Face.
+4. Click "Run Evaluation & Submit All Answers" to evaluate your agent.
+
+## Project files
+
+- `main.py` — Gradio app runner
+- `graph_builder.py` — Builds the LangGraph pipeline
+- `llm_node.py` — Defines LLM node logic
+- `formatter_node.py` — Cleans up answers for exact-match submission
+- `api_client.py` — Wraps GAIA API interactions
+
+Good luck!