add origin to git repository code example

Example 1: adding remote origin git

git remote add origin <link>

Example 2: add remote origin git

$ git remote add origin https://github.com/user/repo.git
# Set a new remote

$ git remote -v
# Verify new remote
> origin  https://github.com/user/repo.git (fetch)
> origin  https://github.com/user/repo.git (push)