[release_v1.3.0]CHANGELOG updated

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/).
 
+## 1.3.0 - 2018-06-18
+### Added
+- Daily charge amount route
+
 ## 1.2.3 - 2018-06-14
 ### Changed
 - Fixed roundig error in classroom count route