This is the first repository that readers of my book C++ with Miyoshi (the link might be considered an ad) or its companion repository CPPwithMiyoshi are instructed to clone or fork. It is starter code for the Variables and Constants problem (GS01-05). You can get to all the problems by clicking the link.
If you need help cloning this repository from Visual Studio, you can find that here or in any number of places in the internet.
Remember that you want to fork a repository if you want to keep your own copy of it on GitHub. Only clone if you are going to just keep a local copy only.