Extension:GrowthExperiments/Technical documentation/Structured tasks/Add a section image

Project page: https://www.mediawiki.org/wiki/Growth/Personalized_first_day/Structured_tasks/Add_a_section_image

Main phab epic: https://phabricator.wikimedia.org/T252822

Figma specs: https://www.figma.com/file/2SONd8P1tsexIB5coMOp8h/Add-links-structured-task-v1.0 (draft)

Infrastructure: TBD (same as Add an image but documentation needs to be updated)

Local development
In LocalSettings.php