✨ Update PurifyHtml function: change model loading to use 'jinaai/ReaderLM-v2' for improved performance.

✨ Update PurifyHtml function: modify model loading to use 'jinaai/jina-readerLM-1.5B' with torch support, and enhance markdown conversion process.

✨ Add HTML purification functionality: integrate PurifyHtml in app and create Gradio interface for user input; update requirements to include transformers.

✨ Enhance app functionality: load environment variables, add new math operations, and improve memory management; update requirements and .gitignore. Add Purify converter for html to markdown process