Fix board list a bit

contrib/static/site.css

@@ -151,6 +151,10 @@ a, a:visited {
     margin-top: 5em;
 }
 
+#board_graph {
+    margin-top: 5em;
+}
+
 .ukko_thread_header {
     float: left;
     clear: both;

contrib/templates/default/boardlist.mustache

@@ -17,13 +17,15 @@
     <div class="index-outer">
       <div class="index-inner">
         <table id="board_graph">
-          <tbody>
+          <thead>
             <tr>
               <th> Board </th>
               <th> Post per Hour </th>
               <th> Post per Day </th>
               <th> Total </th>
             </tr>
+           </thead>
+           <tbody>
             {{# graph}}
             <tr>
               <td>
@@ -46,4 +48,4 @@
     </div>
     </center>
   </body>
-</html>
+</html>