documentation

Pull request #2064: Feature/DEV-4043 7.2 D (Best practices)

Merge in WEB/documentation from feature/DEV-4043-7.2-D to release/7.2

* commit '4e9c7a584c1809a300a71718f6b37a28bec0df96':
  improved Best practices overview (DEV-4043)
  updated links to Best practices (DEV-4043)
  moved Best practices to a stand alone section (DEV-4043)
  fixing broken ID
  added configuration best practices (DEV-4043)