DOC: Edits of example

jklymak · jklymak · commit 21cfca1aa4f4 · 2020-09-15T15:43:15.000-07:00
diff --git a/examples/subplots_axes_and_figures/subpanels.py b/examples/subplots_axes_and_figures/subpanels.py
@@ -11,6 +11,10 @@
 `.figure.PanelBase.add_subplot`, or `.figure.PanelBase.subpanels` to make
 an array of subpanels.  Note that subpanels can also have their own child
 subpanels.
+
+.. note::
+    ``subpanel`` is new in v3.4, and the api is still provisional. 
+
 """
 import matplotlib.pyplot as plt
 import numpy as np
