Adding a language to the codemirror highlighting

What is the simplest way for me to add language support for a new language? In my case it is Clojure but somebody was asking for Solidity here too. Would it be enough to just inject the script tag for Clojure support? Here's the link for Clojure support:

https://cdnjs.cloudflare.com/ajax/libs/codemirror/6.65.7/mode/clojure/clojure.min.js

What would be the simplest way for me to get this in?

I just noticed it appears in the rendered view but I'm looking to enable it in the Markdown view.