[cleanup] fix some typos

Added backport label

I would merge but have a technical question about gitlab: Can I create a cherry-pick MR for the release if the branch is marked for removal and labeled backport?

Learning by doing...

Mentioned in commit e50c4952

Status changed to merged

Mentioned in commit 19904fef

Mentioned in merge request !73 (merged)

Worked!

Mentioned in commit 83f8318b