Use Title: meta instead of explicit <h1>

Author: tantek

css-inline-3/Overview.bs

@@ -1,11 +1,10 @@
-<h1>CSS Inline Layout Module Level 3</h1>
-
 <style media="print" type="text/css">
     img#edge { width: 80%; height: 70%;}
     dt.label { display: run-in; }
 </style>
 
 <pre class='metadata'>
+Title: CSS Inline Layout Module Level 3
 Shortname: css-inline
 Level: 3
 Status: ED