DOC: update DOI information

tacaswell · tacaswell · commit 45598c87ec66 · 2018-03-16T23:28:48.000-04:00
diff --git a/doc/citing.rst b/doc/citing.rst
@@ -27,6 +27,12 @@ publication, please acknowledge this fact by citing `Hunter et al (2007)
 
 DOIs
 ----
+v2.2.2
+   .. image:: https://zenodo.org/badge/DOI/10.5281/zenodo.1202077.svg
+      :target: https://doi.org/10.5281/zenodo.1202077
+v2.2.1
+   .. image:: https://zenodo.org/badge/DOI/10.5281/zenodo.1202050.svg
+      :target: https://doi.org/10.5281/zenodo.1202050
 v2.2.0
    .. image:: https://zenodo.org/badge/DOI/10.5281/zenodo.1189358.svg
       :target: https://doi.org/10.5281/zenodo.1189358
