Why don't you use markdown and convert it using pandoc or something. HTML files aren't really readable as notes.
I actually address that directly in the blog post. I do use Markdown and Pandoc. But going extremely lean on the HTML, editing the documents directly is pretty refreshing. I'd go so far as to say it's a joy to do.
I write my pages as plain HTML documents. Pretty refreshing!
I have a blog post detailing the rationale: https://ig.emnace.org/articles/simplicity-of-web-page.html
But the gist of it is pretty much what you'd expect from the site alone: lightweight, semantically correct, minimal Web pages.