Update AUTHORS.md
Update AUTHORS.md

For a very tiny contribution https://github.com/learningequality/kolibri/pull/7193
learningequality/kolibri,learningequality/kolibri,learningequality/kolibri,learningequality/kolibri,indirectlylit/kolibri,indirectlylit/kolibri,indirectlylit/kolibri,indirectlylit/kolibri