I have seen the code snippet post http://www.themesandco.com/snippet/adding-custom-social-profile-link-icon-header/
But, I need to place on the social bars extra icons and links. These icons are not in Genericons. I need to add Yelp, Best Of The Web, MojoPages and Thumbtack profiles.
I don't currently have Customizr up on the site as I am getting everything ready (I have used Customizr on a similar site)
I am creating a child theme to do edits to functions and css.
Thank you for your help!