RELEASING.md

## Release procedure

When releasing a new version of the wordpress-helm chart, please remember to do
the following:
* update `CHANGELOG.md`;
* change the chart version in `Chart.yaml`;
* (if needed) change the app version in `Chart.yaml`;
* change the default `image.tag` and `initImage.tag` in `values.yaml` to the new
  version (e.g., "0.1.3");
* create a git tag for the new version (e.g., "0.1.3") and push it to Gitlab.
  The CI will create and push docker images tagged by that same version string.
  (You can push all git tags using `git push --tags`, or this specific one using
  `git push origin 0.1.3`.)