Hugo + Github + Netlify - Exactly what you are looking for
What I want is basically need is `$script article.md > article.html` and then `git push` or even manually upload it on a form somewhere.
You can even setup hugo + github pages with a simple script. You fire the script, it compiles and push everything in the right places.
If you don't feel confident about theming, pick one from the website and you're good to go.