final styling of table sorting

app/views/favorites/_th.html.erb

@@ -1,4 +1,3 @@
 <th>
   <%= sortable display, column %>
-  <%= sorting_arrow column %>
 </th>

app/views/favorites/people.html.erb

@@ -6,7 +6,7 @@
   <div class="table_wrapper">
     <table>
       <tr>
-        <th></th>
+        <th>Thumb</th>
         <%= render :partial => "favorites/th", :locals => {:display => "First Name", :column => "first_name"} %>
         <%= render :partial => "favorites/th", :locals => {:display => "Last Name", :column => "last_name"} %>
         <%= render :partial => "favorites/th", :locals => {:display => "Registration Date", :column => "created_at"} %>