DOC: Add mini example to whatsnew

Author: nrebena

doc/source/whatsnew/v1.1.0.rst

@@ -159,7 +159,13 @@ Missing
 MultiIndex
 ^^^^^^^^^^
 - Bug in :meth:`Dataframe.loc` when used with a :class:`MultiIndex`. The returned values were not in the same order as the given inputs (:issue:`22797`)
--
+
+.. ipython:: python
+
+        df = pd.DataFrame(np.arange(4),
+                          index=[["a", "a", "b", "b"], [1, 2, 1, 2]])
+        # Rows are now ordered as the requested keys
+        df.loc[(['b', 'a'], [2, 1]), :]
 -
 
 I/O