Add custom fields to Admin Side add user

Hi,
Could you please try this below code in your theme functions.php file to add any custom field to user profile?
need to replace the field name twitter to address. Or create a new field by new line in side the function.

thanks!

/**
* Add new fields into ‘Contact Info’ section.
*
* @param array $fields Existing fields array.
* @return array
*/
function tm_additional_contact_methods( $fields ) {

$fields[‘twitter’] = ‘Twitter’;
$fields[‘facebook’] = ‘Facebook’;
$fields[‘google-plus’] = ‘Google +’;

return $fields;
}

add_filter( ‘user_contactmethods’, ‘tm_additional_contact_methods’ );