website: add more padding on doc pages

website/themes/hsh/layouts/_default/doc.html

@@ -37,7 +37,7 @@
 		</div>
 	</nav>
 
-	<container class="col mt-2" style="padding-left: 15px; padding-right: 15px">
+	<container class="col mt-2" style="padding-left: 20px; padding-right: 20px;">
 		<div>
 			<h1>{{ .Title }}</h1>
 			<p><em>