Updates for Documentation - Autoscaling
Based on https://gitlab.com/gitlab-org/gitlab-runner/blob/master/docs/install/autoscaling.md
docs/install/autoscaling.md
- The link at
GitLab Runner installation documentation
goes to the GitLab repository (not relevant here), but should go to https://docs.gitlab.com/runner/install/ - Docker Registry and Cache Server may not only be relevant when running in autoscaling. I would suggest to move it to a separate page
Original issue: #2531 (closed)