diff --git a/data scientist.html b/data-scientist/index.xhtml
similarity index 97%
rename from data scientist.html
rename to data-scientist/index.xhtml
index 3d4f7fa..16eb6f5 100644
--- a/data scientist.html	
+++ b/data-scientist/index.xhtml
@@ -1,5 +1,18 @@
+<!DOCTYPE html>
+<html xmlns="http://www.w3.org/1999/xhtml">
+<head>
+<meta charset="utf-8" />
+<title>Data Scientist</title>
+</head>
+<body>
+
+
+
 <article>
-	<h1>Data Scientist</h1>
+	<hgroup>
+		<h1>Data Scientist</h1>
+		<h1>(<a href="../">Artificial Intelligence</a>)</h1>
+	</hgroup>
 	<section>
 		<address class="h-card">
 			by
@@ -137,3 +150,8 @@
 		</p>
 	</section>
 </article>
+
+
+
+</body>
+</html>
