fix for lekiwi config camera index name

docs/source/lekiwi.md

@@ -93,7 +93,7 @@ Make sure the arm is connected to the Raspberry Pi and run this script or API ex
 ```bash
 python -m lerobot.calibrate \
     --robot.type=lekiwi \
-    --robot.port=/dev/tty.usbmodem58760431551 \ # <- The port of your robot
+    --robot.port=/dev/ttyACM0 \ # <- The port of your robot
     --robot.id=my_awesome_kiwi # <- Give the robot a unique name
 ```
 </hfoption>

lerobot/common/robots/lekiwi/config_lekiwi.py

@@ -35,10 +35,10 @@ class LeKiwiConfig(RobotConfig):
     cameras: dict[str, CameraConfig] = field(
         default_factory=lambda: {
             "front": OpenCVCameraConfig(
-                camera_index="/dev/video0", fps=30, width=640, height=480, rotation=None
+                index_or_path="/dev/video0", fps=30, width=640, height=480, rotation=None
             ),
             "wrist": OpenCVCameraConfig(
-                camera_index="/dev/video2", fps=30, width=640, height=480, rotation=180
+                index_or_path="/dev/video2", fps=30, width=640, height=480, rotation=180
             ),
         }
     )