Chore: Update Changelog

CHANGELOG.md

@@ -5,6 +5,8 @@ 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]
+
+## [3.1.0] - 2017-10-03
 ### Features
 * Add `pipeline` with method chaining (#312 @funnisimo)
 
@@ -348,7 +350,8 @@ Bumping the version to v2 as there are fixes in this release that are breaking c
  * multi
  * exec
 
-[Unreleased]: https://github.com/stipsan/ioredis-mock/compare/v3.0.2...HEAD
+[Unreleased]: https://github.com/stipsan/ioredis-mock/compare/v3.1.0...HEAD
+[3.1.0]: https://github.com/stipsan/ioredis-mock/compare/v3.0.2...v3.1.0
 [3.0.2]: https://github.com/stipsan/ioredis-mock/compare/v3.0.1...v3.0.2
 [3.0.1]: https://github.com/stipsan/ioredis-mock/compare/v3.0.0...v3.0.1
 [3.0.0]: https://github.com/stipsan/ioredis-mock/compare/v2.4.1...v3.0.0