Prepare 1.3.0 release (rgreinho#33)

Prepares the new 1.3.0 release.

Co-authored-by: Rémy Greinhofer <remy.greinhofer@gmail.com>

Author: ss-remygreinhofer

CHANGELOG.md

@@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [1.3.0] - 2020-05-12
+
 ### Changed
 
 * Make variable creation process asynchronous. [#31]
@@ -57,6 +59,7 @@ Initial version with support for managing:
 [1.1.0]: https://github.com/rgreinho/tfe-cli/releases/tag/1.1.0
 [1.1.1]: https://github.com/rgreinho/tfe-cli/releases/tag/1.1.1
 [1.2.0]: https://github.com/rgreinho/tfe-cli/releases/tag/1.2.0
+[1.3.0]: https://github.com/rgreinho/tfe-cli/releases/tag/1.3.0
 
 [//]: # (Issue/PR links)
 [#14]: https://github.com/rgreinho/tfe-cli/pull/14