[Feature request] Markdown Previewer Image Support

[DiscoBiscuit99]

I haven't been able to preview images in the markdown editor, so I assume this feature is not yet supported. Hence this feature request. The editor is very cool though.

[0x7c13]

There are three kinds of images:

• Image references from internet (http url)
  -> This is already supported.
• Image references from local folders
  -> This is hard since UWP is very restricted on reading random file/folders and I do not want to complicate it by asking user to select a folder first.
• SVG image references from internet
  -> I intentionally disabled this because the implementation of SVGImageSource is very poor. I know how to fix it but do not have time to do it now.

Overall, the Markdown feature is added as a good to have feature and only intended for light usage. If you are dealing with markdown text all day everyday, I would recommend you to choose another markdown editor, just my 2 cents.