Prepare for new release

Author: Adrián García

CHANGELOG.md

@@ -5,6 +5,9 @@ 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).
 
 ## [Unreleased]
+- No new features, yet!
+
+## [1.3.0] - 2020-03-13
 ### Added
 - Add support for incremental annotation processing.
 ### Fixed
@@ -79,7 +82,8 @@ state (`success` or `failure`)
 ### Added
 - Initial architecture release.
 
-[Unreleased]: https://github.com/bq/mini-kotlin/compare/1.2.0...HEAD
+[Unreleased]: https://github.com/bq/mini-kotlin/compare/1.3.0...HEAD
+[1.3.0]: https://github.com/bq/mini-kotlin/compare/1.2.0...1.3.0
 [1.2.0]: https://github.com/bq/mini-kotlin/compare/1.1.2...1.2.0
 [1.1.2]: https://github.com/bq/mini-kotlin/compare/1.1.1...1.1.2
 [1.1.1]: https://github.com/bq/mini-kotlin/compare/1.1.0...1.1.1