Update header.html

Author: lefticus

_includes/header.html

@@ -101,7 +101,7 @@
  })();
       </script>
       </li>
-      <li>
+      <li valign="middle">
         <a href="http://chaiscript.com/ChaiScript-BuildResults/index.html"><img src="https://img.shields.io/badge/dashboard-online-green.svg"/></a>
       </li>
       <li>