Does GitHub support Hugo? As I only know that it has support for jekyll. If they support then I want try with it. I tried with jekyll but i find customization little complex.
Same. As far as I know, GitHub only supports Jekyll. If you need to serve Hugo for static site generator, I would recommend to use GitLab Pages [1]. It's free and you can connect your own domain and TLS certificates. Not to mention, your repository visibility.
[1]: https://pages.gitlab.io/