config: add HF Spaces YAML configuration to README

README.md

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+---
+title: LLM Excel Plotter
+emoji: 📊
+colorFrom: indigo
+colorTo: purple
+sdk: docker
+sdk_version: "1.0"
+app_file: app.py
+pinned: false
+---
+
+# LLM Excel Plotter Agent
+
+An intelligent Hugging Face Space that uses Large Language Models to process Excel data, generate meaningful charts, and provide automated analysis.
+
+## Features
+
+- 📈 **Intelligent Chart Generation**: Uses Qwen2.5 and BART models to understand data and generate appropriate visualizations
+- 🤖 **LLM-Powered Analysis**: Leverages state-of-the-art language models for data interpretation
+- 📊 **Multiple Chart Types**: Supports line charts, bar charts, scatter plots, and more
+- 🎨 **Interactive UI**: Clean, modern interface built with React and Plotly.js
+- 📁 **File Upload**: Process CSV files and get instant analysis
+
+## Models & APIs
+
+### Local Models (Free)
+- **Qwen2.5-1.5B-Instruct**: Local inference for data analysis
+- **BART Fine-tuned**: Custom model for structured text generation
+
+### Supported External APIs (Optional)
+- Gemini 2.0 Flash: Add `GEMINI_API_KEY` environment variable
+- Grok-3 Mini: Add `GROK_API_KEY` environment variable
+
+## Usage
+
+1. Upload a CSV file containing your data
+2. Ask the chatbot to analyze or visualize specific aspects
+3. View generated charts and insights
+4. Export results or ask follow-up questions
+
+## Deployment
+
+Built with:
+- **Backend**: Flask (Python 3.10)
+- **Frontend**: React 18.3.1
+- **LLM Integration**: Transformers, HuggingFace Inference
+- **Data Processing**: Pandas, Scikit-learn
+
+Deploy to Hugging Face Spaces with Docker support enabled.
+
+---
+
+For more information, visit the [project repository](https://github.com/priyansh-saxena1/LLM-Integrated-Excel-Plotter-App)