Update README.md

README.md

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-# MediAssist v14.3 — Chat + RAG + PDF (HF Endpoint)
-
-**Includes**
-- Chat handler (`backend/chat_endpoint.py`) — robust, JSON-safe, retries/backoff
-- RAG engine (ClinicalBERT + Chroma), OPD + Citations
-- PDF clinical report generator (single page)
-- Diagnostics page
-- Mid-size multi-speciality dataset (150 guideline docs)
-
-## Hugging Face Setup (Streamlit)
-1. Upload this zip to a new Space (SDK: Streamlit).
-2. Settings → Secrets: `HF_API_TOKEN`
-3. Settings → Variables (optional): `HF_CHAT_ENDPOINT` = `https://api-inference.huggingface.co/models/meta-llama/Llama-3.2-1B-Instruct`
-4. Open the app → Sidebar → **Seed / Refresh RAG Index** once.
-5. Use **AI Chat**, **OPD + Citations**, **PDF Report**.
-
-*Generated on 2025-12-06*
+---
+license: apache-2.0
+title: MediAssist v14.3 — Chat + RAG + PDF
+sdk: streamlit
+colorFrom: purple
+colorTo: indigo
+short_description: The MedicalAI system combines **ClinicalBERT**, **RAG retrie
+---