Add a translator comment in csv price import

gnucash/gtkbuilder/assistant-csv-price-import.glade

@@ -50,7 +50,7 @@
       <object class="GtkLabel" id="start_page">
         <property name="visible">True</property>
         <property name="can_focus">False</property>
-        <property name="label" translatable="yes">This assistant will help you import Prices from a CSV file.
+        <property name="label" translatable="yes" comments="You should localize the (british) examples to your region.">This assistant will help you import Prices from a CSV file.
 
 There is a minimum number of columns that have to be present for a successful import, these are Date, Amount, From Namespace, From Symbol and Currency To. If all entries are for the same Commodity / Currency then you can select them and then the columns will be Date and Amount.
 
@@ -1085,5 +1085,8 @@ Cancel to abort.&lt;/b&gt;</property>
     <child>
       <placeholder/>
     </child>
+    <child>
+      <placeholder/>
+    </child>
   </object>
 </interface>