doc: Eliminate still more cases of multiple topic commands

This fixes the dynamic view tutotial based on
the pets model example. Several instances where
\page and \example occur in the same comment
are corrected by removing the \page and leaving
the \example. And the links in the tutorial's
list of chapters are corrected.

Task-number: QTBUG-31578
Change-Id: I5a35b55806e33da5c82c37db1193f96fe74f038a
Reviewed-by: Topi Reiniö <topi.reinio@digia.com>
Reviewed-by: Jerome Pasion <jerome.pasion@digia.com>
doc: Eliminate more cases of multiple topic commands

This fixes the advanced tutotial based on
the samegame example. Several instances where
\page and \example occur in the same comment
are corrected by removing the \page and leaving
the \example. And the links in the tutorial's
list of chapters are correct.

Task-number: QTBUG-31578
Change-Id: I89bb179bc4d4f6120b8d13ba05a51c802a7d4013
Reviewed-by: Jerome Pasion <jerome.pasion@digia.com>
FolderListModel documentation corrections

Task-number: QTBUG-32039
Change-Id: I214c5e58dedb6d752e0c42f6c67fad942bd71894
Reviewed-by: Alan Alpert <aalpert@blackberry.com>
Reviewed-by: Jerome Pasion <jerome.pasion@digia.com>