add images to the notes syntax about fountain

[dancingdoorman]

I like this extension as it would be possible to extend the screenplay to a storyboard. Also classic comic book format, where the dialog is below the picture, would be a possibility.

The problem I see with this, it that the images aren't embedded in the file. This can be fixed by creating a file format akin to Comic Book format CBR, CBZ, witch are Rar and Zip files respectively.
The CBR and CBZ viewers will currently only display the images, so in theory those formats could be reused. If you consider the file associations automatic opening of an app, a specific extension would be better.

[Reaper10]

you may want to take a look at the multimarkdown syntx it maybe easier to implement to the notes.
https://fletcherpenney.net/multimarkdown/
https://rawgit.com/fletcher/MultiMarkdown-6-Syntax-Guide/master/index.html
https://github.com/fletcher/MultiMarkdown-6