Update CHANGELOG for 0.6.0 release. (#61)

Author: Mike Davis

CHANGELOG.md

@@ -4,6 +4,14 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
+## [0.6.0] - October 31st, 2019
+* Adds a few more debug logs
+- Updates to latest master to resolve some targeting issues
+- Update make clean to clean mod cache
+
+### Bug Fixes
+- Actually enable the impression tracking endpoint in the router
+
 ## [0.5.0] - October 24th, 2019
 - Adds GET endpoint for user-based features
 - Adds impression tracking for Feature Tests