CHANGELOG: Change date

Maybe it would be a better idea to only do that after the release,
otherwise people might think it's already released, hmm.

Author: robinst

CHANGELOG.md

@@ -6,7 +6,7 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/).
 This project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html),
 with the exception that 0.x versions can break between minor versions.
 
-## [0.11.0] - 2018-01-16
+## [0.11.0] - 2018-01-17
 ### Added
 - The extension for tables now also renders to plain text
   (when using a `TextContentRenderer`), thanks @ahjaworski