add count to labels

instance-labeler/app/canvas.tsx

@@ -317,7 +317,7 @@ export default function Canvas({ imageUrl, imageName }: { imageUrl: string, imag
                   selectedInstanceRef.current = index;
                   setSelectedInstanceStyle(prev => !prev)
                 }}
-              >{item}</div>
+              >{index} {item}</div>
             </li>
           ))}
         </ul>