Update CHANGELOG

Author: mmistakes

CHANGELOG.md

@@ -7,6 +7,9 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased] -
 
+## Added
+- Display 'Posts' header only if the site has posts. [#144](https://github.com/mmistakes/jekyll-theme-basically-basic/pull/144)
+
 ### Fixed
 - Fix to use current `bundle info` syntax. [#127](https://github.com/mmistakes/jekyll-theme-basically-basic/pull/127)
 - Add `relative_url` filter to author profile image. [#125](https://github.com/mmistakes/jekyll-theme-basically-basic/issues/125)