added placeholder attribute to search field

Author: rossengeorgiev

index.html

@@ -37,7 +37,7 @@
         <div class="container">
             <div class="search">
                 <form>
-                    <input type='text' value="" />
+                    <input type='text' value="" placeholder="Search..." />
                     <input type='submit' value="S" />
                 </form>
             </div>