Normally entity titles are printed in their template. If you want to configure it via manage display instead you can use this module. It allows you to choose which header tag to use for the title as well. Remember to adjust your teaser template.
It has some strange issues with a duplicate title field. You'll see this in manage form display and in views.
https://www.drupal.org/project/title_field_for_manage_display/issues/31…
https://www.drupal.org/project/title_field_for_manage_display/issues/31…
See also Manage Display.
Recommended
Yes
Stability
Stable