Updated conf description

opendm/config.py

@@ -165,8 +165,8 @@ def config():
             default='none',
             choices=['none', 'camera', 'sun', 'sunangle'],
             help=('Set the radiometric calibration to perform on images. '
-                'When processing multispectral images you should set this value '
-                'to obtain reflectance value (otherwise orthophotos will contain Digital Number (DN) values). ' 
+                'When processing multispectral images you should set this option '
+                'to obtain reflectance values (otherwise you will get digital number (DN) values). ' 
                 'Can be set to one of: [none, camera, sun, sunangle]. Default: '
                 '%(default)s'))