added some images to the readme

Author: randomtask2000

.gemini-clipboard/clipboard-1752953227084.png

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 A privacy-first AI assistant with powerful document analysis capabilities that runs entirely in your browser, built with SvelteKit, Skeleton UI and WebLLM. Features include RAG (Retrieval-Augmented Generation) capabilities, multiple theme support, and persistent chat history.
 
-![WebLLM Chat Interface](claude-webllm-app/docs/assets/chat-interface.png)
-
-![Welcome Screen](claude-webllm-app/docs/assets/welcome-screen.png)
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+![WebLLM Chat Interface](./docs/assets/preview1.png)
 ## Features
 
 - 🤖 **WebLLM Integration**: Run large language models directly in the browser