Docs move yaml file details

doc/architecture/blueprints/gitlab_steps/index.md

doc/ci/index.md

doc/ci/migration/github_actions.md

doc/ci/migration/jenkins.md

doc/ci/yaml/gitlab_ci_yaml.md

doc/ci/yaml/img/job_running_v13_10.png

doc/ci/yaml/img/pipeline_status.png

doc/ci/yaml/img/rollback.png

doc/user/application_security/get-started-security.md

...ser/clusters/agent/gitops/example_repository_structure.md

doc/user/clusters/agent/gitops/flux_oci_tutorial.md