Update documentation regarding custom stages and override_project_ci
What does this MR do and why?
Update documentation regarding custom stages and override_project_ci
References
Please include cross links to any resources that are relevant to this MR. This will give reviewers and future readers helpful context to give an efficient review of the changes introduced.
- Support stages from policies with override_proj... (!171680 - merged)
- Fix stages_compatible? not being restrictive en... (!173273 - merged)
MR acceptance checklist
Please evaluate this MR against the MR acceptance checklist. It helps you analyze changes to reduce risks in quality, performance, reliability, security, and maintainability.
Related to #494431 (closed)