github:pages

Create gh-pages branch with placeholder index.html

git checkout --orphan gh-pages
git clean -fdx
echo "My Github Page" > index.html
echo "true" > .nojekyll
git add .
git commit -a -m "Initial commit"
git push origin gh-pages

Create submodule to gh-branch called www (choose your username/project below)

git checkout master
git submodule add -b gh-pages git@github.com:username/project.git www
git status
git commit -m "Adding submodule to gh-pages"
git push