Turn markdown links in script-help-string into buttons in the library

[Metaxal]

[spdegabrielle]

should the markdown render with links?

[Metaxal]

I may rethink the use of markdown though. Ideally I should use scribble I guess.

[Metaxal]

Regarding links, it would be a better option than the buttons idea, but the message% can't render links.