Update trademark description in footer.html

Author: dave2wave

content/theme/templates/footer.html

@@ -3,7 +3,7 @@
       <div class="large-12 medium-12 columns">
         <p style="font-style: italic; font-size: 0.8rem; text-align: center;">
           Copyright {{ CURRENTYEAR }}, <a href="https://www.apache.org/">The Apache Software Foundation</a>, Licensed under the <a href="https://www.apache.org/licenses/LICENSE-2.0">Apache License, Version 2.0</a>.<br>
-          Apache&reg; and the Apache feather logo are trademarks of The Apache Software Foundation.
+          Apache&reg; and the Apache logo are trademarks or registered trademarks of The Apache Software Foundation.
         </p>
       </div>
     </div>