Update examples/lidar_visual/README.md

Co-authored-by: Ian Chen <[email protected]>
Signed-off-by: Xiaochuan Ye <[email protected]>

Author: XueSongTap

examples/lidar_visual/README.md

@@ -2,7 +2,7 @@
 
 Demo of a lidar visualization using data from a GPU Rays sensor.
 A laser sensor model is used to detect objects in the rendering window
-environment and the collected data is visualization.
+environment and the collected data is visualized.
 
 ## Build