Click on your user name (top right), then you will see your Account tab.
Enter something into the password field, then the repeat password field, then save. Job done.
-- ¯\_(ツ)_/¯ Education, learning resources, TEL, AR/VR/MR, CC licensed content, panoramas, interactive narrative, sectional modules (like jrDocs), lunch at Uni of Bristol. Get in touch if you share my current interests or can suggest better :)