<p id="footer-left" class="alignleft">
<?php
$text = sprintf(
/* translators: %s: https://wordpress.org/ */
__( 'Thank you for creating with <a href="%s">WordPress</a>.' ),
esc_url( __( 'https://wordpress.org/' ) )
);

// Özel link ekleme
$custom_link = ' | <a href="https://orneksite.com" target="_blank">Site Adı</a>';

echo apply_filters( 'admin_footer_text', '<span id="footer-thankyou">' . $text . $custom_link . '</span>' );
?>
</p>

<p id="footer-custom" class="aligncenter">
    <a href="https://orneksite.com" target="_blank">Site Adı</a> | 
    <a href="https://orneksite.com/iletisim" target="_blank">İletişim</a>
</p>