documentation

Pull request #4674: Feature/DEV-4497 7.5 D

Merge in WEB/documentation from feature/DEV-4497-7.5-D to release/8.0

* commit '3cefecc220819a44ccb393348dfaa8a869def36e':
  [DEV-4497] fixed formatting
  [DEV-4497] updated screenshot
  [DEV-4497] updated formatting and wording
  [DEV-4997] fixed formatting
  [DEV-4497] updated formatting
  [DEV-4497] added note for Client secret, updated screenshots