git fork sync with master code example
Example 1: git pull updates from fork
$ cd github-services
$ git remote add upstream git://github.com/pjhyett/github-services.git
$ git fetch upstream
# then: (like "git pull" which is fetch + merge)
$ git merge upstream/master master
# or, better, replay your local work on top of the fetched branch
# like a "git pull --rebase"
$ git rebase upstream/master
Example 2: git update fork from original repo
$ git remote add upstream https://github.com/[Original Owner Username]/[Original Repository].git
$ git fetch upstream
$ git checkout master
$ git merge upstream/master
$ git push