Follow style convention for documentation

What does this MR do?

Follow style convention for documentation

Why was this MR needed?

pdate the TIP to follow style guide provided in https://docs.gitlab.com/ee/development/documentation/styleguide.html#tip 2f2e9732

Are there points in the code the reviewer needs to double check?

Does this MR meet the acceptance criteria?

• Documentation created/updated
• Added tests for this feature/bug
• In case of conflicts with master - branch was rebased

Relevant issues

Follow up from !1185 (merged)