Update README.md with gradio version and documentation

- Update sdk_version from 5.37.0 to 5.49.1
- Add comprehensive project description and features
- Add setup instructions with uv commands
- Add project structure and technologies sections
- Improve documentation for new users

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Co-Authored-By: Claude <noreply@anthropic.com>

README.md

@@ -4,9 +4,56 @@ emoji: 🚀
 colorFrom: yellow
 colorTo: yellow
 sdk: gradio
-sdk_version: 5.37.0
+sdk_version: 5.49.1
 app_file: app.py
 pinned: false
 ---
 
+# LangGraph UI
+
+A Gradio-based chat interface for LangGraph supervisor workflow with nested agent visualization.
+
+## Features
+
+- 🤖 Multi-agent system with supervisor workflow
+- 🔍 Research agent with web search capabilities
+- 🧮 Math agent for calculations
+- 💬 Interactive chat interface with nested thoughts visualization
+- 🎨 Real-time streaming of agent execution steps
+
+## Setup
+
+1. Install dependencies:
+```bash
+uv sync
+```
+
+2. Set up environment variables:
+Create a `.env` file in the root directory:
+```
+OPENAI_API_KEY=your-openai-api-key-here
+```
+
+3. Run the application:
+```bash
+uv run python app.py
+```
+
+The application will start on `http://localhost:7860`
+
+## Project Structure
+
+- `app.py` - Gradio chat interface
+- `graph.py` - LangGraph supervisor workflow and agents
+- `pyproject.toml` - Project dependencies managed by uv
+- `.env` - Environment variables (not tracked in git)
+
+## Technologies
+
+- [Gradio](https://gradio.app/) - Web UI framework
+- [LangGraph](https://langchain-ai.github.io/langgraph/) - Agent orchestration
+- [LangChain](https://langchain.com/) - LLM framework
+- [OpenAI](https://openai.com/) - LLM provider
+- [uv](https://github.com/astral-sh/uv) - Python package manager
+
 Check out the configuration reference at https://huggingface.co/docs/hub/spaces-config-reference