Adding stylesheets and scripts to html output

[forky2]

markdown-it-py works great but if my markdown source contains some codeblock sections such as mermaid and diff then in order for these to render properly I've got to manually add a block to the end of my html:

<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.11.1/styles/default.min.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.11.1/highlight.min.js"></script>

<!-- and it's easy to individually load additional languages -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.11.1/languages/go.min.js"></script>

<script>hljs.highlightAll();</script>
<script>document.querySelectorAll('.language-mermaid').forEach(s => s.classList.add("mermaid"))</script>
<script src="https://cdn.jsdelivr.net/npm/mermaid@9/dist/mermaid.min.js"></script>
<script>mermaid.initialize({ startOnLoad:true })</script>

I don't expect markdown-it-py to know to add this, but is there a way to have my required includes included automatically when html_text = md.render(text) is executed? Or is there an even better way?

(You may correctly deduce that I am pretty basic when it comes to web; it took me a long time to realise that i needed to add these scripts and that it was not a limitation of markdown-it-py in failing to convert the codeblocks.)