Bump gem (#63)

* Add changelog

* Bump gem version

* Adds CHANGELOG

CHANGELOG

@@ -0,0 +1,19 @@
+# Changelog
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [Unreleased]
+
+## [2.0.0] - 2020-06-15
+### Added
+- A new structure of data inside Storage::Redis #60
+- This CHANGELOG file to hopefully serve as an evolving example of a
+  standardized open-source project CHANGELOG.
+- New `Model#releases` method, which will return all the features accessible by the `Model`
+
+### Breaking Changes
+- The main API of `FeatureFlagger::Control` and `FeatureFlagger::Storage`
+  got rewritten, we decoupled the `resource_name` from the `feature_key`
+  and that allowed us to change the way we store the data

lib/feature_flagger/version.rb

@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module FeatureFlagger
-  VERSION = '1.1.0'
+  VERSION = '2.0.0'
 end