Ok,
I have looked far and wide and the information I have found about this - which isn't much is beyond me to decypher.
I have a Visual Studio Solution which I want to contain two different projects. Each project is a completely different repository on Git.
One project is a library that the main application in the other project uses (as does a few other projects which is why the library is separate).
How do I set it up in Visual Studio to do this? Really baby steps please!