Update CHANGELOG and history

Author: mmistakes

CHANGELOG.md

@@ -2,6 +2,7 @@
 
 ### Enhancements
 
+- Update Chinese (Simplified) localized UI text strings. [#2286](https://github.com/mmistakes/minimal-mistakes/pull/2286)
 - Update list of 3rd party JavaScript used and licenses. [#2276](https://github.com/mmistakes/minimal-mistakes/pull/2276)
 
 ### Bug Fixes

docs/_docs/18-history.md

@@ -5,14 +5,15 @@ permalink: /docs/history/
 excerpt: "Change log of enhancements and bug fixes made to the theme."
 sidebar:
   nav: docs
-last_modified_at: 2019-10-17T20:16:25-04:00
+last_modified_at: 2019-10-17T20:18:19-04:00
 toc: false
 ---
 
 ## Unreleased
 
 ### Enhancements
 
+- Update Chinese (Simplified) localized UI text strings. [#2286](https://github.com/mmistakes/minimal-mistakes/pull/2286)
 - Update list of 3rd party JavaScript used and licenses. [#2276](https://github.com/mmistakes/minimal-mistakes/pull/2276)
 
 ### Bug Fixes