LaTeX.org

not sure. probably not.

I am looking for something where you have a set of documents or one large documents that you browse over internet.

Let say I am writing my code and instead of writing documentation in MD and posting it in my private github repo I post it on some kind of server that I can ...

This might be a silly idea and there might be a good reason it doesn't exist. However, if there is a MD based webserver like Hugo, there should be a Tex based one....

I did noticed there is "Overleaf" but that is a online editor ...

Is there to anyone's knowledge a Tex Based server that can be ...