Add some help to the search box.

app/views/site/_search.rhtml

@@ -6,6 +6,11 @@
                        :url => { :controller => :geocoder, :action => :search } ) do %>
       <%= text_field_tag :query, nil, :size => 16 %>
     <% end %>
+    <p class="search_help">
+      examples: 'Alkmaar', 'Regent Street, Cambridge', 'CB2 5AQ',
+      or 'post offices near Lünen'
+      <a href="http://wiki.openstreetmap.org/index.php/Name_finder#Searching_for_things">more examples...</a>
+    </p>
   </div>
   <script type="text/javascript">
   <!--