Add Pkl language grammar into Highlight.js

[jcubit]

Feature Name

Add Pkl language grammar into Highlight.js

Description

Hi 👋 Would it be possible to add a Pkl language grammar into highlight.js?

Thank you for considering this!

Motivation

highlight.js is a popular syntax-highlighting javascript package. The community of Pkl users can benefit from this support. In particular, Docc renders language syntax via highlight.js. Any website could use this javascript package to show Pkl code.

[bioball]

I agree that this is good to have. We'll look into it.