fix: update board image (#43)

* fix: update board image

Author: johnnyfish

README.md

@@ -1,13 +1,13 @@
 <div align="center">
-  <img src="./docs/images/clawe.png" alt="Clawe" width="600" />
+  <img src="./docs/images/clawe-logo.png" alt="Clawe" width="600" />
   <p><strong>A multi-agent coordination system powered by <a href="https://github.com/openclaw/openclaw">OpenClaw</a>.</strong></p>
   <p>Deploy a team of AI agents that work together, each with their own identity, workspace, and scheduled heartbeats. Coordinate tasks, share context, and deliver notifications in near real-time.</p>
 </div>
 
 <div align="center">
   <video src="https://github.com/user-attachments/assets/d2f892d9-4c32-4c31-95e5-222d4ea87592" width="600" controls>
     <a href="https://github.com/user-attachments/assets/d2f892d9-4c32-4c31-95e5-222d4ea87592">
-      <img src="./docs/images/clawe.png" alt="Clawe demo" width="600" />
+      <img src="./docs/images/clawe-logo.png" alt="Clawe" width="600" />
       <br>▶ Watch demo
     </a>
   </video>