Create workflow example illustrating how to implement integration tests using docker-compose. Examples available [here](https://github.com/codefresh-io/docs.codefresh.io/tree/master/_docs/yaml-examples/examples), [here](https://medium.com/swlh/the-ultimate-guide-to-integration-testing-with-docker-compose-and-sql-f288f05032c9) or [here](https://phrase.com/blog/posts/unifying-rails-environments-docker-compose/).
