updated sha documents  to use SkyCoord
@@ -25,7 +25,7 @@ Query with an astropy coordinate instance (preferred):
.. code-block:: python
- >>> pos_t1 = sha.query(coord=coord.FK5(ra=163.6136, dec=-11.784,
+ >>> pos_t1 = sha.query(coord=coord.SkyCoord(ra=163.6136, dec=-11.784,
... unit=(u.degree, u.degree)), size=0.5)
Query with the alternate ``ra`` and ``dec`` parameters:
