Add Live Demo badge linking to GitHub Pages brochure

- Add prominent "Live Demo - Interactive Brochure" badge
- Links to https://brobertsaz.github.io/claude-os/
- Uses cyan color (#00D9FF) matching brand
- Style: for-the-badge for visibility

Now visitors can easily find the beautiful brochure site!

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

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

README.md

@@ -16,6 +16,12 @@
   <a href="https://ollama.ai/"><img src="https://img.shields.io/badge/Ollama-Latest-pink.svg" alt="Ollama"></a>
 </p>
 
+<p align="center">
+  <a href="https://brobertsaz.github.io/claude-os/">
+    <img src="https://img.shields.io/badge/🌐_Live_Demo-Interactive_Brochure-00D9FF?style=for-the-badge&logo=github" alt="Live Demo">
+  </a>
+</p>
+
 ---
 
 ## 🚀 What is Claude OS?