DOC: add whatsnew 0.20.2 to display (#16273)

jreback · TomAugspurger · commit baeb3fff9f31 · 2017-05-30T07:23:45.000-05:00
(cherry picked from commit b8f6556)
diff --git a/doc/source/whatsnew.rst b/doc/source/whatsnew.rst
@@ -18,6 +18,8 @@ What's New
 
 These are new features and improvements of note in each release.
 
+.. include:: whatsnew/v0.20.2.txt
+
 .. include:: whatsnew/v0.20.0.txt
 
 .. include:: whatsnew/v0.19.2.txt
