Update ndcube/ndcube.py

Co-authored-by: DanRyanIrish <ryand5@tcd.ie>

Author: nabobalis

ndcube/ndcube.py

@@ -1148,7 +1148,7 @@ def rebin(self, bin_shape, operation=np.mean, operation_ignores_mask=False, hand
             units have to be convertible to pixels.
             The sentinel value ``-1`` can be passed for a dimension which means
             that no rebinning will occur along that dimension.
-            Please note the ``bin_shape`` follows NumPy ordering of the axes.
+            Please note the ``bin_shape`` follows array axis (NumPy) ordering of the axes.
         operation : function
             Function applied to the data to derive values of the bins.
             Default is `numpy.mean`