DOC: Update Series.argsort documentation #24816 (#24830)

Author: benjaminr

pandas/core/series.py

@@ -2992,11 +2992,13 @@ def argsort(self, axis=0, kind='quicksort', order=None):
 
  Parameters
  ----------
- axis : int (can only be zero)
+ axis : int
+ Has no effect but is accepted for compatibility with numpy.
  kind : {'mergesort', 'quicksort', 'heapsort'}, default 'quicksort'
  Choice of sorting algorithm. See np.sort for more
  information. 'mergesort' is the only stable algorithm
- order : ignored
+ order : None
+ Has no effect but is accepted for compatibility with numpy.
 
  Returns
  -------