source:
https://developer.mozilla.org/en-US/docs/Web/HTML/Element/audio
https://wicg.github.io/controls-list/explainer.html
<audio controls controlslist="nodownload" src="/media/cc0-audio/t-rex-roar.mp3"></audio>
add it using +more -> +html
in the gridder
and the url needs to be the url of your audio file, and it should be uploaded using the media library
