fixing one non-compliance in _layouts/post.html; adding Valid XHTML 1.0 Strict notice

_layouts/base.html

@@ -14,7 +14,7 @@
         <div id="container">
             {{ content }}
             <div id="footer">
-                <p>Copyright &copy; 2011 Ben Kurtovic &bull; <a href="http://github.com/earwig/earwig.github.com">View Source</a></p>
+                <p>Copyright &copy; 2011 Ben Kurtovic &bull; <a href="http://github.com/earwig/earwig.github.com">View Source</a> &bull; <a href="http://validator.w3.org/check?uri=http%3A%2F%2Fearwig.github.com%2F">Valid XHTML 1.0 Strict</a></p>
             </div>
         </div>
     </body>

_layouts/post.html

@@ -2,11 +2,9 @@
 layout: base
 ---
 
-<a class="incognito" href="/">
-    <div id="header">
-        <h1 class="naked">{{ page.title }}</h1>
-    </div>
-</a>
+<div id="header">
+    <h1 class="naked"><a class="incognito" href="/">{{ page.title }}</a></h1>
+</div>
 <div id="content">
     <span class="description"><span class="highlight">Date:</span> {{ page.date | date: "%b %d, %Y" }}</span>
     <div id="post">