Merge topic 'tutorial-updates' 5e56300742 Tutorial: Refactor Step 10 93289830ea Tutorial: Clarify Step 4 TODO 4 c65e01a979 Tutorial: Clarify Step 3 4f955834cf Tutorial: Fix Step 1 TODO 1 to be expandable Acked-by: Kitware Robot <kwrobot@kitware.com> Acked-by: buildbot <buildbot@kitware.com> Merge-request: !8590