add v0.3.0 DOI badge to changes.rst

Author: njsmith

doc/changes.rst

@@ -6,6 +6,9 @@ Changes
 v0.3.0
 ------
 
+.. image:: https://zenodo.org/badge/4175/njsmith/zs.png
+   :target: http://dx.doi.org/10.5281/zenodo.11445
+
 * New stateful transforms for computing natural and cylic cubic
   splines with constraints, and tensor spline bases with
   constraints. (Thanks to `@broessli <https://github.com/broessli>`_

release-checklist.txt

@@ -25,3 +25,6 @@
 * go to https://github.com/pydata/patsy/releases/new and type the tag
   name and give it some text. (This will trigger Zenodo archiving the
   tag.)
+* go to
+     https://zenodo.org/search?f=author&p=Nathaniel%20J.%20Smith&ln=en
+  to find the new archive and add the DOI image to changes.rst.