Assuming you have a child theme so that you don't need to keep editing footer.php every time your parent theme updates. Add the code below to functions.php of your child theme
Than just call the function inside footer.php. In divi 3.0 I commented out line #39 and added the code below right after that
I used this cool plugin that seems to work well with Divi 3.0 called Child Theme Configurator to create the initial child theme