Generate preview images
completed by: Daksh
mentors: Sugar Labs
We are migrating to a new portal for Sugar activities (currently hosted at http://www.aslo.cf/). The new portal expects activities to have categories assigned in their activity.info file as well as screenshots (which can be language specific). In this task, find an activity that does not yet have data populating these fields (category and screenshot) and generate these data in the form of a pull request. See tutorial.md for details.