diff --git a/orbbec_camera/examples/align_depth_color/align_depth_color.MD b/orbbec_camera/examples/align_depth_color/README.MD
similarity index 100%
rename from orbbec_camera/examples/align_depth_color/align_depth_color.MD
rename to orbbec_camera/examples/align_depth_color/README.MD
diff --git a/orbbec_camera/examples/point_cloud/point_cloud.MD b/orbbec_camera/examples/point_cloud/README.MD
similarity index 100%
rename from orbbec_camera/examples/point_cloud/point_cloud.MD
rename to orbbec_camera/examples/point_cloud/README.MD
diff --git a/orbbec_camera/examples/start_camera_node/start_camera_node.MD b/orbbec_camera/examples/start_camera_node/README.MD
similarity index 100%
rename from orbbec_camera/examples/start_camera_node/start_camera_node.MD
rename to orbbec_camera/examples/start_camera_node/README.MD