External CSS in Editorial (Tip)
I have finally decided to figure out how to do external CSS in Editorial, and it is very easy.
Your HTML goes inside of a markdown file, and your CSS goes inside of a typical .css file (change the extension of the document to css. Now your image references will work, and will be displayed in the Preview menu.
Image references will work as well:
<\img src="images/Image.jpg"</img> (Ignore the backslash)
The above finds an image named Image.jpg in a folder named "images" which is in the same directory as the markdown and css files.
Now all I need is a workflow to load zip files into Editorial, and I can use Editorial as a competent HTML editor soon enough.