So one would download an image, attach it to the note, and then they could right click on the attachment and click insert into body or something like that.
Another idea was to create a web clipper 'note type' and expand past just simple markdown notes. Note types would be for example, a web clipper note type which would download a webpage for offline consumption as a note. Or a list note type which has check boxes, list items, etc. One could potentially be a gallery or image note type for attaching and viewing image.
I'm still thinking through the idea and implementation but it's one of the features I'd really like to implement. I think it would make note taking way more flexible than just markdown.