Fix project and community links in model card

Point the GitHub badge to the MiniCPM-Robot repository and use absolute Hugging Face URLs for the existing X and Discord QR-code images.

README.md

@@ -21,15 +21,15 @@ tags:
 <p align="center">
     <span style="display: inline-flex; align-items: center; margin-right: 2px;">
     <img src="assets/github.png" alt="github" width="15" height="15" style="margin-right: 4px;">
-    <a href="https://github.com/OpenBMB/MiniCPM-RobotTrack" target="_blank"> Github</a> &nbsp;|
+    <a href="https://github.com/OpenBMB/MiniCPM-Robot" target="_blank"> Github</a> &nbsp;|
     </span>
     <span style="display: inline-flex; align-items: center; margin-right: 2px;">
     <img src="assets/x.jpg" alt="X" width="15" height="15" style="margin-right: 4px;">
-    <a href="assets/x.png" target="_blank"> X</a> &nbsp;|
+    <a href="https://huggingface.co/openbmb/MiniCPM-RobotTrack/resolve/main/assets/x.png" target="_blank"> X</a> &nbsp;|
     </span>
     <span style="display: inline-flex; align-items: center; margin-right: 2px;">
     <img src="assets/discord.png" alt="Discord" width="15" height="15" style="margin-right: 4px;">
-    <a href="assets/discord.jpg" target="_blank"> Discord</a> &nbsp;|
+    <a href="https://huggingface.co/openbmb/MiniCPM-RobotTrack/resolve/main/assets/discord.jpg" target="_blank"> Discord</a> &nbsp;|
     </span>
 </p>