update the git remote url code example

Example 1: git update remote origin

git remote set-url origin new.git.url/here

Example 2: set remote url 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)