Sub-heading raise warning not error
Sub-heading raise warning not error

Related with https://github.com/swcarpentry/lesson-template/issues/220.

easyreporting/fmri_reporting,easyreporting/fmri_reporting,easyreporting/fmri_reporting,easyreporting/fmri_reporting,easyreporting/fmri_reporting,easyreporting/fmri_reporting