mdtransform is a simple tool that converts Markdown (.md) files into HTML files suitable to be served on the Web.
This page is itself rendered with mdtransform; you can see the original Markdown source code here and the template HTML file here.
You can get mdtransform from Rust's package manager with the command cargo install mdtransform.
You can also build it from the source code, which you'll find on GitHub.
Usage information can be found by running mdtransform --help; the general usage is mdtransform --template <path to template file> [directories containing Markdown files]. Output is written as .html files with the same name and location as the .md files.
You can report bugs on GitHub.