Rename repo to `cloud-native`
Since we are going to host these charts for the forseeable future in the same charts.gitlab.io repository, we should rename this repository to `cloud-native-charts`. This would reduce confusion, since we will not be using `helm.gitlab.io`. If we do this, we will need to: * Update the readme in `charts.gitlab.io` * Update the Kubernetes installation docs in `gitlab-ce`
issue