Add new functionality to release notes
### Version 3.4.5 (TBA)
+* Support for dockerizing Spring Boot applications. - [Pull Request 619](https://github.com/bmuschko/gradle-docker-plugin/pull/619)
+
### Version 3.4.4 (July 15, 2018)
* Task `DockerLivenessContainer` had its polling logic reworked to be more failure proof.
