Update CHANGELOG

Author: mmistakes

CHANGELOG.md

@@ -5,4 +5,9 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
+## [Unreleased]
+### Added
+- Print styles for improved readability of printed pages. [#4](https://github.com/mmistakes/jekyll-theme-basically-basic/pull/4)
+- Icon list to README.
+
 ## [1.0.0] - 2017-03-20