Update README.md

Author: AadarshHegde123

GEMstack/offboard/calibration/README.md

@@ -26,7 +26,7 @@ This repository contains tools for offline calibration of LiDAR and camera senso
 
 **Usage**:  
 
-python3 make_gem_e4_ouster_v2.py      # Edit LiDAR data paths in script
+python3 lidar_to_vehicle.py      # Edit LiDAR data paths in script
 
 
 ### 2. CAMERA-to-Vehicle Calibration (`camera_to_vehicle_manual.py`)
@@ -57,7 +57,8 @@ python3 lidar_to_camera.py   # Ensure T_lidar_vehicle and T_camera_vehicle matri
 
 **3D Alignment Check**:
  1. Use vis() function in scripts to view calibrated LiDAR/camera clouds
- 2. Toggle VIS = True in make_gem_e4_ouster_v2.py for ground plane/object visualization
+ 2. Toggle VIS = True in lidar_to_vehicle.py for ground plane/object visualization
+ 3. Use test_transforms.py to visualize lidar point cloud on top of png image. Helps verify accuracy of lidar->camera.
 
 **Projection Validation**:
  1. RGB image overlaid with transformed LiDAR points (Z-buffered)
@@ -67,6 +68,7 @@ python3 lidar_to_camera.py   # Ensure T_lidar_vehicle and T_camera_vehicle matri
 
 
 
+
 ### Assumption and Notes
 
 1. The sensor data should be time-aligned.