forgot nav for xml

Author: Jason Varnedoe

xml.html

@@ -31,24 +31,7 @@ <h1>PHP101</h1>
       </div><!-- end banner -->
 
     <div class="wrapper">
-      <nav>
-        <ul>
-          <li><a href="index.html">Introduction</a></li>
-          <li><a href="start.html">Down the rabbit hole - Part 1</a></li>
-          <li><a href="operators.html">Calling all operators - Part 2</a></li>
-          <li><a href="loops.html">Looping the loop - Part 3</a></li>
-          <li><a href="types.html">The food factor - Part 4</a></li>
-          <li><a href="files.html">Rank and file - Part 5</a></li>
-          <li><a href="functions.html">Functionally yours - Part 6</a></li>
-          <li><a href="objects.html">The bear necessities - Part 7</a></li>
-          <li><a href="databases.html">Databases and otters - Part 8</a></li>
-          <li><a href="sessions.html">Sessions in cookie jars - Part 10</a></li>
-          <li><a href="xml.html">Sinfully simple - Part 11</a></li>
-          <li><a href="error-handling.html">Bugging out - Part 12</a></li>
-          <li><a href="validation.html">The trashman cometh - Part 13</a></li>
-          <li><a href="fin.html">A real challenge - Part 14</a></li>
-        </ul>
-      </nav>
+      {% include nav.html %}
       <section>
       	<h2>Easy peasy</h2>
 	<p>Unless you’ve been hiding in a cave for the last few years, you’ve heard about XML – it’s