Update Dedicated-specific instructions
What does this MR do and why?
We have already updated this page to indicate this feature is just for GitLab Dedicated and GitLab.com instances. This change updates documentation that was un-necessarily GitLab Dedicated specific.
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.
Edited by rossfuhrman