As I am intending to show lots of code examples on this site, it is important to have something that makes the code easy to read.
Version of this sites index.php "route / view" handler
So just to get things going, I have added Highlight.js to the mix. It is pretty simple to install, although it appears a little bland out of the box using the css file, default.css. There are quite a few styles you can choose from to give your code that professional look. In this case I have chosen the "agate.css" style sheet. What do you think!.