DOC: change confusing wording in Dataframe.quantile to match with Series.quantile #22463 (#22464)

Author: peterpanmj

pandas/core/frame.py

@@ -7249,8 +7249,7 @@ def f(s):
     def quantile(self, q=0.5, axis=0, numeric_only=True,
                  interpolation='linear'):
         """
-        Return values at the given quantile over requested axis, a la
-        numpy.percentile.
+        Return values at the given quantile over requested axis.
 
         Parameters
         ----------
@@ -7315,6 +7314,7 @@ def quantile(self, q=0.5, axis=0, numeric_only=True,
         See Also
         --------
         pandas.core.window.Rolling.quantile
+        numpy.percentile
         """
         self._check_percentile(q)