First install google golang from their website appropriate to your computer.

Then build hugo from source code using their github repo.

mkdir $HOME/src
cd $HOME/src
git clone https://github.com/gohugoio/hugo.git
cd hugo
go install --tags extended

If you are a Windows user, substitute the $HOME environment variable above with %USERPROFILE%.

Create a site for github pages

Go to github and create a repo. Get the git https clone URL.

Now create a hugo directory,

mkdir <repo_name>
cd my repo
hugo new site .
git remote add origin <repo_clone_url>
git push -u origin master

This will create the scaffolding for hugo. Now we will get a theme. Go to the themes github page and get the clone url.

cd themes
git clone <theme_clone_url>
cd ..

This wll create a directory with same name as the theme. Now copy the theme config to the our config.

cp themes/<theme_name>/exampleSite/config.toml .

Now edit the config.toml file and delete the themesdir as appropriate.

At this point you can add content, and do your own theme.

Need to play with themes.

Render Math