For more about highlight.js, see https://highlightjs.org/
For more about MLIR, see https://mlir.llvm.org/
Load the module after loading Highlight.js. You'll use the minified version found in the dist
directory. This module is just a CDN build of the language, so it will register itself as the Javascript is loaded.
<script type="text/javascript" src="/path/to/highlight.min.js"></script>
<script type="text/javascript" charset="UTF-8"
src="/path/to/highlightjs-mlir/dist/mlir.min.js"></script>
<script type="text/javascript">
hljs.highlightAll();
</script>