D11032: Add info about consecutive tasks for KTimer

[Yuri Chornoivan]

yurchor accepted this revision as: yurchor.
This revision is now accepted and ready to land.

REPOSITORY
  R361 KTimer

REVISION DETAIL
  https://phabricator.kde.org/D11032

To: lueck, #documentation, fmiroslaw, yurchor
Cc: kde-utils-devel