How do I enable line number for a code block?

[emotio...@gmail.com]

I love that feature that markdown-preview-enhanced has where "You can enable line number for a code block by adding line-numbers class"
Source: https://shd101wyy.github.io/markdown-preview-enhanced/#/markdown-basics?id=lineno

I'm only interested in that feature, so is there the possibility of you guys adding it in the next build? It'd mean a lot to me! :)