Updated changelog

Author: etki

CHANGELOG.md

@@ -4,6 +4,10 @@ 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/).
 
+## [0.1.1] - 2017-07-31
+### Added
+- `scale` option by [cvakiitho](https://github.com/cvakiitho) ([#2](https://github.com/ama-team/cookbook-docker-compose/pull/2))
+
 ## [0.1.0]
 ### Added
 - Added `docker_compose_installation` resource