Fix Auto DevOps quick start guide

Achilleas Pipinellisrequested to merge
docs/autodevops-fixes into master

What does this MR do?

There were some issues with the Auto DevOps quick start guide. Namely:

  1. A pipeline can't be triggered because the forked project is missing .gitlab-ci.yml.
  2. build buildpack is failing

These can be solved by:

  1. Tell the user to push something in the repo, or manually visit project_path/pipelines/run.
  2. Use a project that has a Dockerfile in order for the build stage to pass.

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/37768

Edited by Achilleas Pipinellis

Merge request reports