Follow-up from "Update Helm Chart docs from CE - docs"

The following discussions from !2871 (merged) should be addressed:

• @axil started a discussion:

  Use relative URLs.

• @axil started a discussion:

  Relative URL to Container Registry!

• @axil started a discussion:

  Better use the the docs site here https://docs.gitlab.com/runner/executors/kubernetes.html.