add github account to git code example

Example 1: how to set up git for github

$ git config --global user.name "Your name here"
$ git config --global user.email "[email protected]"

Example 2: git hub set up

mnelson:myproject mnelson$ git remote add origin https://github.com/cubeton/mynewrepository.git
mnelson:myproject mnelson$ git push -u origin master
Counting objects: 3, done.
Writing objects: 100% (3/3), 263 bytes | 0 bytes/s, done.
Total 3 (delta 0), reused 0 (delta 0)
To https://github.com/cubeton/mynewrepository.git
 * [new branch]      master -> master
Branch master set up to track remote branch master from origin.

Example 3: git hub set up

mnelson:myproject mnelson$ git pull origin master
remote: Counting objects: 1, done.
remote: Total 1 (delta 0), reused 0 (delta 0), pack-reused 0
Unpacking objects: 100% (1/1), done.
From https://github.com/cubeton/mynewrepository
 * branch            master     -> FETCH_HEAD
   b345d9a..5381b7c  master     -> origin/master
Merge made by the 'recursive' strategy.
 mnelson.txt | 1 +
 1 file changed, 1 insertion(+)