Custom Footer Text in Admin Panel

functions.php

<?php

//* Modify the admin footer text
add_filter( 'admin_footer_text', 'website_name_modify_footer_admin' );
function website_name_modify_footer_admin () {
  
  echo '<span id="footer-thankyou">Theme Development by <a href="http://braundesign.co" target="_blank">Braun Design Co</a></span>';
}