whatsnew clarification

doc/source/whatsnew/v0.23.0.txt

@@ -181,7 +181,7 @@ Please note that the string `index` is not supported with the round trip format,
 Index Division By Zero Fills Correctly
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
-Division operations on ``Index`` and subclasses will now fill positive / 0 with ``np.inf``, negative / 0 with ``-np.inf``, and 0 / 0 with ``np.nan``.  This matches existing ``Series`` behavior. (:issue:`19322`, :issue:`19347`)
+Division operations on ``Index`` and subclasses will now fill division of positive numbers by zero with ``np.inf``, division of negative numbers by zero with ``-np.inf`` and `0 / 0` with ``np.nan``.  This matches existing ``Series`` behavior. (:issue:`19322`, :issue:`19347`)
 
 Previous Behavior: