Added documentation for beam tracking and position information

tangostationcontrol/docs/source/devices/beam.rst

@@ -29,7 +29,7 @@ Beam Steering
 
 The beam steering is responsible for pointing the beams at a target, by converting pointings to ``recv.HBAT_bf_delay_steps``. The beam steering is typically controlled by the beam tracker. To point the antennas in any direction manually, you should disable beam tracking first:
 
-:HBAT_tracking_enabled_RW: Enable or disable beam tracking (default: ``True``). 
+:HBAT_tracking_enabled_RW: Enable or disable beam tracking (default: ``True``).
 
   :type: ``bool``
 
@@ -62,7 +62,7 @@ NB: A LOFAR antenna field is constructed such that all tiles lie within the same
 HBA delays
 ```````````````````````
 
-Each HBA tile is steered by configuring the number of *delay steps* to introduce for each element. 
+Each HBA tile is steered by configuring the number of *delay steps* to introduce for each element.
 
 Direction information
 ```````````````````````