and hugo generated highlighted HTML. I would like to stop language auto detection on this page, because it has nothing to do with source code or configuration file.
How do I disable the highlight for this particular markdown file?
Hugo has two highlighting mechanism for source code:
Putting things in {{% highlight %}}…{{% /highlight %}} tags (using Pygments).
Putting things in <pre><code></code></pre> blocks and using a JavaScript highlighter.
It doesn’t do any language auto-detection otherwise.
If you can paste (in a code block) the input that you put and add a screenshot of what you’re seeing, we might be able to figure out what’s going on, but I can’t see anything in what you put here that would turn into anything that would look highlighted there.
But those still shouldn’t result in syntax highlighting without one of the other preconditions (that is, code fences and 4 space indentation create <pre><code>…</code></pre> blocks highlighted by a JS highlighter).