Merge pull request #222 from cumulus-nasa/fix_change_log

Fix change log

CHANGELOG.md

@@ -4,6 +4,7 @@ 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).
 
+## [Unreleased]
 
 ## [v1.0.1] - 2018-02-27
 
@@ -16,3 +17,6 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## [v1.0.0] - 2018-02-23
 
+[Unreleased]: https://github.com/cumulus-nasa/cumulus/compare/v1.0.1...HEAD
+[v1.0.1]: https://github.com/cumulus-nasa/cumulus/compare/v1.0.0...v1.0.1
+[v1.0.0]: https://github.com/cumulus-nasa/cumulus/compare/pre-v1-release...v1.0.0