fix sentence

Signed-off-by: vividf <[email protected]>

sensor/docs/tutorials/tag_based_pnp_calibrator.md

@@ -66,7 +66,7 @@ When the user starts the calibration, `rviz` and the `image view` should be disp
     <img src="../images/tag_based_pnp_calibrator/visualization1.jpg"  alt="visualization1">
 </p>
 
-After the tools detect the lidartag and apriltag, it will show the detection markers on the `rviz` and the `image view`. The text in the rviz will also display the current number of pairs of lidartag detections and apriltag detections.
+After the tools detect the lidartag and apriltag, it will show the detection markers on the `rviz` and the `image view`. The text in rviz will also display the number of pairs of apriltag detections.
 
 <p align="center">
     <img src="../images/tag_based_pnp_calibrator/visualization2.jpg"  alt="visualization2">