docs: add banner image to README

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

README.md

@@ -3,10 +3,13 @@
 [![npm version](https://img.shields.io/npm/v/antigravity-claude-proxy.svg)](https://www.npmjs.com/package/antigravity-claude-proxy)
 [![npm downloads](https://img.shields.io/npm/dm/antigravity-claude-proxy.svg)](https://www.npmjs.com/package/antigravity-claude-proxy)
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
-[![Buy Me A Coffee](https://img.shields.io/badge/Buy%20Me%20A%20Coffee-support-orange?style=flat&logo=buy-me-a-coffee)](https://buymeacoffee.com/badrinarayanans)
+
+<a href="https://buymeacoffee.com/badrinarayanans" target="_blank"><img src="https://cdn.buymeacoffee.com/buttons/v2/default-yellow.png" alt="Buy Me A Coffee" height="50"></a>
 
 A proxy server that exposes an **Anthropic-compatible API** backed by **Antigravity's Cloud Code**, letting you use Claude models like sonnet and opus with **Claude Code CLI**.
 
+![Antigravity Claude Proxy Banner](images/banner.png)
+
 ## How It Works
 
 ```