Click “clone or download” (green button, right side)
Click “copy to clipboard” button (at right)
Open a terminal window on your computer
Type “cd” and the path to where you want your local copy of the files and hit return. For example, if I wanted the repository to be housed inside of a folder on my Desktop called R_Projects, I would type in the terminal “cd Desktop/R_Projects”
Type: “git clone <paste from clipboard (ctrl-V or cmd-V)>” and hit return
Now you have a cloned (copy) of the repository on your disk