Add information about uploading an image in a response

above, there's a statement to the effect that if students upload an image, they also have to provide text (no images by themselves). I'm not sure if a comment field automatically comes along with this allow_file_upload setting, or if a comment field must also be added. Might be worth spelling that out as either the result (possibly with an image of what it will look like) or as a required next step with xref to adding a comment field.