All: Update license URL, clarify icon class usage

Ref #455

themes/jquery/footer-bottom.php

@@ -1,19 +1,19 @@
 <?php
 	$links = array(
 		'Learning Center' => array(
-			'icon' => 'pencil',
+			'class' => 'icon-pencil',
 			'url' => 'https://learn.jquery.com/'
 		),
 		'Chat' => array(
-			'icon' => 'comments',
+			'class' => 'icon-comments',
 			'url' => 'https://jquery.com/support/'
 		),
 		'Twitter' => array(
-			'icon' => 'twitter',
+			'class' => 'icon-twitter',
 			'url' => get_option( 'jquery_twitter_link' ) ?: 'https://twitter.com/jquery'
 		),
 		'GitHub' => array(
-			'icon' => 'github',
+			'class' => 'icon-github',
 			'url' => 'https://github.com/jquery'
 		)
 	);
@@ -22,10 +22,10 @@
 <div id="legal" class="legal">
 	<ul class="footer-site-links">
 	<?php foreach ( $links as $title => $link ) : ?>
-		<li><a class="icon-<?php echo $link[ 'icon' ]; ?>" href="<?php echo $link[ 'url' ]; ?>"><?php echo $title; ?></a></li>
+		<li><a class="<?php echo $link[ 'class' ]; ?>" href="<?php echo $link[ 'url' ]; ?>"><?php echo $title; ?></a></li>
 	<?php endforeach ?></ul>
 	<p class="copyright">
-		Copyright <?php echo date('Y'); ?> <a href="https://openjsf.org/">OpenJS Foundation</a> and jQuery contributors. All rights reserved. See <a href="https://jquery.org/license/">jQuery License</a> for more information. The <a href="https://openjsf.org/">OpenJS Foundation</a> has registered trademarks and uses trademarks. For a list of trademarks of the <a href="https://openjsf.org/">OpenJS Foundation</a>, please see our <a href="https://trademark-policy.openjsf.org/">Trademark Policy</a> and <a href="https://trademark-list.openjsf.org/">Trademark List</a>. Trademarks and logos not indicated on the <a href="https://trademark-list.openjsf.org/">list of OpenJS Foundation trademarks</a> are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them. OpenJS Foundation <a href="https://terms-of-use.openjsf.org/">Terms of Use</a>, <a href="https://privacy-policy.openjsf.org/">Privacy</a>, and <a href="https://www.linuxfoundation.org/cookies">Cookie</a> Policies also apply.
+		Copyright <?php echo date('Y'); ?> <a href="https://openjsf.org/">OpenJS Foundation</a> and jQuery contributors. All rights reserved. See <a href="https://jquery.com/license/">jQuery License</a> for more information. The <a href="https://openjsf.org/">OpenJS Foundation</a> has registered trademarks and uses trademarks. For a list of trademarks of the <a href="https://openjsf.org/">OpenJS Foundation</a>, please see our <a href="https://trademark-policy.openjsf.org/">Trademark Policy</a> and <a href="https://trademark-list.openjsf.org/">Trademark List</a>. Trademarks and logos not indicated on the <a href="https://trademark-list.openjsf.org/">list of OpenJS Foundation trademarks</a> are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them. OpenJS Foundation <a href="https://terms-of-use.openjsf.org/">Terms of Use</a>, <a href="https://privacy-policy.openjsf.org/">Privacy</a>, and <a href="https://www.linuxfoundation.org/cookies">Cookie</a> Policies also apply.
 	</p>
 	<p><a href="https://www.digitalocean.com" class="do-link">Web hosting by Digital Ocean</a> | <a href="https://www.fastly.com/">CDN by Fastly</a> | <a href="https://wordpress.org/" class="wp-link">Powered by WordPress</a></p>
 </div>