touch html in message

sshop.theme

@@ -152,7 +152,9 @@ function sshop_form_system_theme_settings_alter(&$form, FormStateInterface $form
     '#title' => t('Display theme credits'),
     '#default_value' => theme_get_setting('display_theme_credits'),
   ];
-  $message = t('Do you need help to customize this theme? We can help!<ul>
+  $message = t('<h3>Do you need help to customize this theme?</h3>
+<p>We can help!</p>
+<ul>
 <li>web: <a href="@url">https://www.optasy.com</a></li>
 <li>e-mail: <a href="mailto:@email">contact@optasy.com</a></li>
 <li>phone: (416) 243.2431</li>