DOC more ambiguous May release date for 0.21

jnothman · jnothman · commit 2dcf4899631f · 2019-04-30T22:50:07.000+10:00
diff --git a/doc/whats_new/v0.21.rst b/doc/whats_new/v0.21.rst
@@ -7,7 +7,7 @@
 Version 0.21.0
 ==============
 
-**May 1, 2019**
+**May 2019**
 
 Changed models
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