Once you've cloned the site repo, from the repo root folder, run:
$ git clone https://github.com/chainx-org/documentation
$ cd documentation
$ git submodule update --init --recursive
$ hugo server
Once you've cloned the site repo, from the repo root folder, run:
$ git clone https://github.com/chainx-org/documentation
$ cd documentation
$ git submodule update --init --recursive
$ hugo server