Hadn’t noticed that, but yes, external images do work. I also can’t find a syntax that works for local images though. E.g. in the following, both images render correctly in the Markdown view of the note, but only the second shows up in the Presentation view:
Daer Kate. That’s correct. Your first line is the syntax for showing a local file (eg coming froma copy/paste) and that one doesn’t work. The second syntax is the one for an external file and that one works