add contributor list

README.md

@@ -321,7 +321,11 @@ nanobot/
 └── cli/            # 🖥️ Commands
 ```
 
-## 🗺️ Roadmap
+## 🤝 Contribute & Roadmap
+
+PRs welcome! The codebase is intentionally small and readable. 🤗
+
+**Roadmap** — Pick an item and [open a PR](https://github.com/HKUDS/nanobot/pulls)!
 
 - [ ] **Multi-modal** — See and hear (images, voice, video)
 - [ ] **Long-term memory** — Never forget important context
@@ -329,14 +333,16 @@ nanobot/
 - [ ] **More integrations** — Discord, Slack, email, calendar
 - [ ] **Self-improvement** — Learn from feedback and mistakes
 
-**Want to help?** Pick an item and [open a PR](https://github.com/HKUDS/nanobot/pulls)!
+### Contributors
+
+<a href="https://github.com/HKUDS/nanobot/graphs/contributors">
+  <img src="https://contrib.rocks/image?repo=HKUDS/nanobot" />
+</a>
 
 ---
 
 ## ⭐ Star History
 
-*Community Growth Trajectory*
-
 <div align="center">
   <a href="https://star-history.com/#HKUDS/nanobot&Date">
     <picture>
@@ -347,12 +353,6 @@ nanobot/
   </a>
 </div>
 
----
-
-## 🤝 Contribute
-
-PRs welcome! The codebase is intentionally small and readable. 🤗
-
 <p align="center">
   <em> Thanks for visiting ✨ nanobot!</em><br><br>
   <img src="https://visitor-badge.laobi.icu/badge?page_id=HKUDS.nanobot&style=for-the-badge&color=00d4ff" alt="Views">