Needs approval from an approver in each of these files:
- ~~[docs/user-guide/src/OWNERS](https://github.com/metal3-io/metal3-docs/blob/main/docs/user-guide/src/OWNERS)~~ [kashifest]
Approvers can indicate their approval by writing `/approve` in a comment
Approvers can cancel approval by writing `/approve cancel` in a comment
Add tuminoid to reviewers for user-guide.