Update search results to scroll, remove initial dummy text

source/layouts/layout.erb

@@ -64,10 +64,7 @@ under the License.
         <div class="search">
           <input type="text" class="search" id="input-search" placeholder="Search">
         </div>
-        <ul class="search-results">
-          <li><a href="#">Introduction</a></li>
-          <li><a href="#">Cats</a></li>
-        </ul>
+        <ul class="search-results"></ul>
       <% end %>
       <div id="toc">
       </div>

source/stylesheets/screen.css.scss

@@ -127,7 +127,8 @@ html, body {
     margin-top: 0;
     @include box-sizing(border-box);
     height: 0;
-    overflow: hidden;
+    overflow-y: auto;
+    overflow-x: hidden;
     @include transition-property(height margin);
     @include transition-duration(180ms);
     @include transition-timing-function(ease-in-out);