desc update

tpl/page_optm/settings_media.tpl.php

@@ -27,7 +27,8 @@
 			<td>
 				<?php $this->build_switch($id); ?>
 				<div class="litespeed-desc">
-					<?php echo __('Preload featured image/image above the fold.', 'litespeed-cache'); ?>
+					<?php echo __('Load a post\'s Featured Image first, before the page begins to render. Leads to performance improvements and minimizes the risk of render blocking by Featured Images.', 'litespeed-cache'); ?>
+					<?php Doc::learn_more('https://docs.litespeedtech.com/lscache/lscwp/pageopt/#preload-featured-image'); ?>
 				</div>
 			</td>
 		</tr>