D7681: Update human-readable tier designation in API dox

[Marco Martin]

mart accepted this revision.
mart added a comment.


  ping?

REPOSITORY
  R169 Kirigami

BRANCH
  master

REVISION DETAIL
  https://phabricator.kde.org/D7681

To: adridg, dfaure, mart
Cc: plasma-devel, apol, davidedmundson, mart, hein