Using a source code from GitHub.

PaulS:
That's a library. You still need to write a sketch to use the library.

Edit: No, you don't. It's a poor library, with the implementation in the header file, but there is a sketch.

What did you do with the two files?

Absolutely nothing yet. I am too afraid to do anything as I stated this is my first time using an Arduino. Can you guide me to what I should do next:)? I have all the hardware wired up I am just waiting to understand how to upload the code to my Arduino.