use attachTour not attach in tours

Change-Id: I6788ed173dedf079a1cadaacd1681470ad3ddace
Reviewed-on: https://gerrit.instructure.com/42659
Tested-by: Jenkins <jenkins@instructure.com>
Reviewed-by: Ryan Florence <ryanf@instructure.com>
Product-Review: Ryan Florence <ryanf@instructure.com>
QA-Review: Ryan Florence <ryanf@instructure.com>