Merge pull request #241 from datacarpentry/239_remove_import

Remove GD1 import from select episode

Author: ShebMichel

episodes/05-select.md

@@ -72,7 +72,7 @@ This imports previously imported functions:
 import astropy.units as u
 from astropy.coordinates import SkyCoord
 from astroquery.gaia import Gaia
-from gala.coordinates import GD1Koposov10, GD1, reflex_correct
+from gala.coordinates import GD1Koposov10, reflex_correct
 import matplotlib.pyplot as plt
 import pandas as pd