Update README.md

README.md

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-# AI Tutor Application 
- 
-This is an AI tutor application for exam preparation. 
- 
-## Features 
-- RAG-based question answering 
-- PDF and image upload 
-- Text-to-speech responses 
+---
+title: AI Tutor
+emoji: 📚
+colorFrom: blue
+colorTo: purple
+sdk: docker
+app_file: app.py
+pinned: false
+---
+
+# AI Tutor Application
+
+AI tutor for exam preparation using RAG with PDF/image upload and TTS responses.
+
+## Features
+- RAG-based question answering
+- PDF and image document processing
+- Google TTS audio responses
+- Multimodal learning support
+
+## How to Use
+1. Upload study materials (PDFs/images)
+2. Ask questions about your materials
+3. Get explanations with audio support
+
+## Technology Stack
+- HuggingFace Transformers
+- LangChain for RAG
+- ChromaDB for vector storage
+- Google Cloud TTS
+- Gradio for UI