Add an example where multiple images are built/multiple microservices are deployed

This would be beneficial for new users to see how they could deploy multiple microservices with a single `git push` command. I noticed that the gitkube cli prompts you to add more containers, so we can definitely build multiple images, but we are only allowed to mention a single `Manifests/Chart directory` and a single `Deployment name`. An example would make it clear how to go about deploying multiple micro-services.