I have been using this plugin to https://wordpress.org/plugins/pastacode/
highlight some of my programming. I write a bit in Powershell however this is not a supported markup. This is what to add to your functions file of your theme to add another library
You will also need to create a js folder and upload the new .js library from https://codemirror.net/mode/ and prism.js
Trackback from your site.