Update header.html

Author: vanruesc

manual/layouts/partials/header.html

@@ -1,7 +1,7 @@
 <header class="page-header">
 
 	<h1 class="page-title">
-		<a href="{{ `/` | relLangURL }}">{{ .Site.Title }}</a>
+		<a href="{{ .Site.BaseURL | relLangURL }}">{{ .Site.Title }}</a>
 	</h1>
 
 	<div class="sidebar-button-close" aria-label="{{ i18n `closeNav` . }}"></div>