git pull from upstream branch code example

Example: git fetch upstream

These steps update the master branch.

1. Make sure you are on the appropriate branch.
	git checkout master

2. Fetch content from upstream
	git fetch upstream

3. Merge upstream with the appropriate local branch
	git merge upstream/master
    
4. Get help on Resolve merge conflicts if these occur.

5. If you also maintain a GitHub repository, push changes to 
	GitHub’s (origin) master branch
	git push origin master