changed about.phtml (#3790)

app/views/index/about.phtml

@@ -1,7 +1,9 @@
 <div class="post content">
+	<?php if (FreshRSS_Auth::hasAccess()) {?>
 	<div class="link-back-wrapper">
 		<a class="link-back" href="<?= _url('index', 'index') ?>"><?= _t('gen.action.back_to_rss_feeds') ?></a>
 	</div>
+	<?php } ?>
 
 	<h1><?= _t('index.about') ?></h1>