Add social media icon

Hi, I’m trying to add a bloglovin’ icon to the social media icons to put into my top bar. I found the code on your site, but I did not understand what to change.

// Register new icon as a theme icon
function avia_add_custom_icon($icons) {
$icons[‘icon_name’] = array( ‘font’ =>’fontello’, ‘icon’ => ‘ue800’);
return $icons;
}
add_filter(‘avf_default_icons’,’avia_add_custom_icon’, 10, 1);

// Add new icon as an option for social icons
function avia_add_custom_social_icon($icons) {
$icons[‘Icon Label’] = ‘icon_name’;
return $icons;
}
add_filter(‘avf_social_icons_options’,’avia_add_custom_social_icon’, 10, 1);

The icon I found on fontello which I wanted to add called “vkontakte” the one with the “B” and a black square.