How To Add Font Awesome 4
- Open header.php file of the child theme
- Add the following link under the end style tag before end head tag (Martine Properties site is example):
<link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.0.13/css/all.css" integrity="sha384-DNOHZ68U8hZfKXOrtjWvjxusGo9WQnrNx2sqG0tfsghAvtVlRW3tvkXWZh58N9jp" crossorigin="anonymous">