I want to include the font-awesome css file into my child

I want to include the font-awesome css file into my child theme but for some reason can't figure out how to add it without copying the header file from the parent first. If I do that, then the theme will be out of sync when the parent gets updated.

I am using UpFront and Spirit...

The code to include is: <link rel="stylesheet" href="path/to/font-awesome/css/font-awesome.min.css">