Before you start using Git it is a good idea to configure it with at least your name and email address. This information will be stored with every commit and allows you to find out who made the commit.
To configure your credentials open up a terminal window and use the following commands:
$ git config --global user.name “Your Name”
$ git config --global user.email “your@emailaddress.tld”
When you commit new changes they will now contain your name and email address in the history.