http://r53zi7kxyqd72fuvhztzi25fo2bze7fqjefze7k6t6kiq74pzaq5suyd.onion/posts/2023/2023-07-18.html
While it's different than Markdown, it's not hard to understand how it works. To make it even better, even complex things are made easy, like tables. Second, you can embed code in the file. On my website, I embed quite a bit of HTML in some places (I'll explain why later in the post), but also lines of code when needed.