How to make better the syntax highlighting for Markdown code blocks (Discourse)

There are a few console and repl examples. This might be easier than I first thought.

$ echo $EDITOR
vim
$ git checkout main
Switched to branch 'main'
Your branch is up-to-date with 'origin/main'.
$ git push
Everything up-to-date
$ echo 'All
> done!'
All
done!