Add api changes about deprecating axes_grid

jenshnielsen · jenshnielsen · commit a9f08fb3e635 · 2016-01-04T17:27:19.000Z
diff --git a/doc/api/api_changes/2015-12-30-JHN.rst b/doc/api/api_changes/2015-12-30-JHN.rst
@@ -0,0 +1,7 @@
+`mpl_toolkits.axes_grid` has been deprecated
+````````````````````````````````````````````
+
+All functionallity from `mpl_toolkits.axes_grid` can be found in either 
+`mpl_toolkits.axes_grid1` or `mpl_toolkits.axisartist`. Axes classes from 
+`mpl_toolkits.axes_grid` based on `Axis` from `mpl_toolkits.axisartist` can be
+fund in `mpl_toolkits.axisartist`
