Merge branch 'docs-aqualls-prereq' into 'master'

docs: Fix "prerequisite:" in Omnibus docs

See merge request https://gitlab.com/gitlab-org/omnibus-gitlab/-/merge_requests/7252

Merged-by: Suzanne Selhorn <[email protected]>
Approved-by: Suzanne Selhorn <[email protected]>
Co-authored-by: Amy Qualls <[email protected]>

Author: Suzanne Selhorn

doc/build/team_member_docs.md

@@ -117,7 +117,7 @@ below for details:
 
 ## Build packages for other operating systems
 
-Prerequisite:
+Prerequisites:
 
 - You must have permission to push branches to the `omnibus-gitlab` [release mirror](https://dev.gitlab.org/gitlab/omnibus-gitlab).