Fix broken anchor

Author: brson

index.html

@@ -51,7 +51,7 @@
 	<ul class="unstyled menu">
           <li>Documentation
             <ul>
-              <li><a href="http://doc.rust-lang.org/doc/0.3/tutorial.html">Tutorial</li>
+              <li><a href="http://doc.rust-lang.org/doc/0.3/tutorial.html">Tutorial</a></li>
               <li><a href="http://doc.rust-lang.org/doc/0.3/rust.html">Manual</a>
                   (<a href="http://doc.rust-lang.org/doc/0.3/rust.pdf">PDF</a>)</li>
               <li><a href="http://doc.rust-lang.org/doc/0.3/core/index.html">Core lib</a></li>