change copy for price tier explanation (bug 709789)

apps/devhub/templates/devhub/payments/includes/tier.html

@@ -3,22 +3,20 @@
   <div class="extra">
     <p>
       {% if webapp %}
-        {% trans doc_url=url('devhub.docs', doc_name='marketplace') %}
-          Select a price tier for your app below. Price tiers are based on
-          US Dollars and are fixed for all supported countries. For more
-          information.
-        {% endtrans %}
+        {% with doc_url=url('devhub.docs', doc_name='marketplace') %}
+          {{ loc('Select a price tier for your app below. Price tiers are based
+                  on US Dollars and are fixed for all supported countries.') }}
+        {% endwith %}
         {# TODO(marketplace-docs):
-          <a href="{{ doc_url }}">view our pricing matrix</a>.
+          For more information <a href="{{ doc_url }}">view our pricing matrix</a>.
         #}
       {% else %}
-        {% trans doc_url=url('devhub.docs', doc_name='marketplace') %}
-          Select a price tier for your add-on below. Price tiers
-          are based on US Dollars and are fixed for all supported countries. For more
-          information.
-        {% endtrans %}
+        {% with doc_url=url('devhub.docs', doc_name='marketplace') %}
+          {{ loc('Select a price tier for your add-on below. Price tiers are
+                  based on US Dollars and are fixed for all supported countries.') }}
+        {% endwith %}
         {# TODO(marketplace-docs):
-          <a href="{{ doc_url }}">view our pricing matrix</a>.
+           For more information <a href="{{ doc_url }}">view our pricing matrix</a>.
         #}
       {% endif %}
     </p>