Add Merge notes for #153

CHANGELOG

@@ -4,10 +4,12 @@ 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).
 
-## [3.3.0] - 2019-01-23
+## [3.3.0-rc.0] - 2019-01-23
 ### Changes
 * Changed signature of CreateDomain() Now returns JSON response
 * Changed signature of GetDomain() Now returns a single DomainResponse
+* Clarified installation notes for non golang module users
+* Changed 'Public Key' to 'Public Validation Key' in readme
 
 ## [3.2.0] - 2019-01-21
 ### Changes