> The overriding design goal for Markdown’s formatting syntax is to make it as readable as possible. The idea is that a Markdown-formatted document should be publishable as-is, as plain text, without looking like it’s been marked up with tags or formatting instructions.
That doesn't make it not true though. Markdown generally supports HTML (though oftentimes only a subset), and is typically styled using CSS. Using a web view makes complete sense to me.