Mention how to do translation with Qt Quick.
Mention how to do translation with Qt Quick.

Change-Id: I8b46f298ac6f37d23327d2b260e923f749cbd6ff
Reviewed-by: Paul Olav Tvete <97541fb6312d77f06e19078c7c70b2c1f75fb828@digia.com>

kobolabs/qtdoc,kobolabs/qtdoc,kobolabs/qtdoc,kobolabs/qtdoc