DOC: add 0.21.0 to whatsnew

jreback · stangirala · commit 3935c3797cf7 · 2017-06-11T13:59:42.000-07:00
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/v0.21.0.txt
+
 .. include:: whatsnew/v0.20.2.txt
 
 .. include:: whatsnew/v0.20.0.txt
