Merge pull request #487 from clearpathrobotics/fix/3d-nav-note

Added note about 3D lidar scans being experimental.

Author: tonybaltovski

docs_versioned_docs/version-ros2jazzy/ros/tutorials/navigation_demos/nav2.mdx

@@ -22,7 +22,8 @@ to `false`.
 
 Clearpath's Nav2 demos are written to support 2D lidars. If your robot has a 3D lidar on it, you can use the
 [3d lidar's `scan` topic](../../api/sensors_api#3d-lidar-topics) to provide the necessary 2d `laserscan` input by
-using the `scan_topic` argument, e.g. `scan_topic:=/a300_0000/sensors/lidar3d_0/scan`.
+using the `scan_topic` argument, e.g. `scan_topic:=/a300_0000/sensors/lidar3d_0/scan`. However, this is 
+experimental and potentially impacts various factors such as computing resources.
 
 :::