Made minimal dark version

src/includes/download-navigation.html

@@ -1,15 +1,8 @@
     <div id="navigation">
         <div class="wrapper">
             <a href="/">
+                <img class="navimg" src="../images/HeadImg.png" alt="Brammp's Transfer.sh service">
                 <h1>{{.Hostname}}</h1>
             </a>
-            <ul class="hidden-xs">
-                <li><a href="../">home</a>
-                </li>
-                <li><a href="../#samples">sample use cases</a>
-                </li>
-                <li><a href="#contact">contact us</a>
-                </li>
-            </ul>
         </div>
     </div>