git clone git@github.com:YOUR-USERNAME/YOUR-FORKED-REPO.git
cd into/cloned/fork-repo
git remote add upstream git://github.com/ORIGINAL-DEV-USERNAME/REPO-YOU-FORKED-FROM.git
git fetch upstream
rebase vs merge).rebase vs merge)reset vs checkout vs revert)git rev-parse)pull vs fetch)stash vs branch)reset vs checkout vs revert)