Fix header for 4.5.1 release notes

diff --git a/docs/releases/v4.5.1.rst b/docs/releases/v4.5.1.rst
index 2e0aad67474f82833dce73dea53bcb2255d55a5e..0f1f3fcf4a82e0b2fdc7bb54fd22cd565f1307a2 100644 (file)
--- a/docs/releases/v4.5.1.rst
+++ b/docs/releases/v4.5.1.rst
@@ -1,7 +1,7 @@
-What's new in Tornado 4.5
-=========================
+What's new in Tornado 4.5.1
+===========================
 
-Apr 16, 2017
+Apr 20, 2017
 ------------
 
 `tornado.log`