I have issues using the editor but I'll put a single letter in the spot for the image url (inside editor). Press enter, then where itvuse to say editor it'll now say raw html. Click that raw html link.
So I'll use <> instead of ;;
;html;
;body;
You can talk here
;img src="https://IMIGEURLIMIGESAFE.domain" /;
And here! #htmlCHEATsheet are online and for free
;/body;
;/html;
So check out a cheet sheet and get loading! Good luck