git config --global user.name "vallettea"
git config --global user.email "vallettea@gmail.com"
ssh-keygen -t rsa -b 4096 -C "vallettea@gmail.com"
eval ssh-agent $SHELL
ssh-add ~/.ssh/id_rsa
# cat ~/.ssh/id_rsa.pub and add it to github
ssh -T git@github.com