feat(about): full presentation mode

Author: JesperDramsch

_includes/header.html

@@ -2,7 +2,11 @@
 	<div class="container">
 		<div style="vertical-align: middle; padding-top: 8px">
 			<div>
-				<a class="navbar-brand" href="{{site.baseurl}}/" style="border-bottom: none; line-height: 0.1em">
+				<a
+					class="navbar-brand"
+					href="{{site.baseurl_root}}/{% tl about %}"
+					style="border-bottom: none; line-height: 0.1em"
+				>
 					Python Deadlines<br /><br />
 				</a>
 			</div>