docs: update usb_camera package document link

README.md

@@ -33,7 +33,7 @@ To use the packages in this repository, make sure you have the following install
 
 | Category          | Package              | Description                                                         | Documentation                                        |
 |-------------------|----------------------|---------------------------------------------------------------------|-----------------------------------------------------|
-| Camera Nodes      | `usb_camera`          | V4L2 USB Camera Node with lifecycle management.                     | [Link to docs](usb_camera/README.md)                |
+| Image Projection  | `usb_camera`          | V4L2 USB Camera Node with lifecycle management.                     | [Link to docs](image_projection/usb_camera/README.md)                |
 | Image Projection  | `pan_tilt_camera`     | Advanced V4L2 USB Camera Node with lifecycle management and pan-tilt control via ROS topics. | [Link to docs](image_projection/pan_tilt_camera/README.md) |
 | Image Projection  | `image_to_ros2_topic` | Publishes static image files (JPG, PNG etc) to ROS2 topics with configurable parameters.          | [Link to docs](image_projection/image_to_ros2_topic/README.md)        |
 | Image Projection  | `video_to_ros2_topic` | Publishes static video files (MP4, AVI etc) to ROS2 topics with configurable parameters.          | [Link to docs](image_projection/video_to_ros2_topic/README.md)        |