I would wish for a (full-blown) markdown support like on Github when editing model descriptions.
This would make it much easier to maintain good model description as it’s copy-pasteable from any other source without loosing any formatting.
A first iteration might support basic formatting (boldness, italic, link obfuscation) and image substitution (from uploaded images).
And some kind of utopic ultimate iteration would even allow to source the Markdown directly from Github to have a nice versioned description.