one more fix for doc reference

immaxchen · immaxchen · commit c8442e1a841a · 2020-10-04T22:58:27.000+08:00
diff --git a/examples/lines_bars_and_markers/bar_label_demo.py b/examples/lines_bars_and_markers/bar_label_demo.py
@@ -3,7 +3,7 @@
 Bar Label Demo
 ==============
 
-This example shows how to use `bar_label` helper function
+This example shows how to use the `~.Axes.bar_label` helper function
 to create bar chart labels.
 
 See also the :doc:`grouped bar
