User contact methods

Twitter, Facebook and LinkedIn

// Register User Contact Methods
function custom_user_contact_methods( $user_contact_method ) {

	$user_contact_method['twitter'] = __( 'Twitter account', 'text_domain' );
	$user_contact_method['Facebook'] = __( 'Facebook acount', 'text_domain' );
	$user_contact_method['LinkedIn'] = __( 'LinkedIn account', 'text_domain' );

	return $user_contact_method;

}
add_filter( 'user_contactmethods', 'custom_user_contact_methods' );