Merge pull request #15 from BrianPugh/patch-1

Update README.rst

Author: tekktrik

README.rst

@@ -71,7 +71,7 @@ Usage Example
 
     while True:
         mag_x, mag_y, mag_z = sensor.magnetic
-        print('Magnetometer (gauss): ({0:10.3f}, {1:10.3f}, {2:10.3f})'.format(mag_x, mag_y, mag_z))
+        print('Magnetometer (uT): ({0:10.3f}, {1:10.3f}, {2:10.3f})'.format(mag_x, mag_y, mag_z))
         print('')
         time.sleep(1.0)