To make use of the autocompletion and linting available via the [official GitLab extension for VSCode](https://gitlab.com/gitlab-org/gitlab-vscode-extension) (I'm sure similar things exist for other IDEs) we should rename all of the templates in this project to follow the `*.gitlab-ci.yml` naming convention as this is how these extensions and linters etc. will determine that a specific yaml file is in fact a `gitlab-ci` type file. Obviously, this is a breaking change. So, we would need to bump the repo to a new `v3.0.0` release. Here is an example of the vscode autocomplete suggesting the predefined CI variables in a drop-down list #winning!