Edit template postage from a separate view

app/templates/partials/templates/guidance-postage.html

@@ -0,0 +1,16 @@
+<h2 class="heading-medium">
+  Delivery times
+</h2>
+<p>
+  Letters sent before 5:30pm are dispatched the next working day (Monday to Friday).
+</p>
+<p>
+  First class letters are delivered one day after they're dispatched. Second class letters are delivered 2 days after they're dispatched.
+</p>
+<p>
+  Royal Mail delivers from Monday to Saturday, excluding bank holidays.
+</p>
+  <a href="{{ url_for('.pricing') + '#letters'}}">See a list of postage prices.</a>
+<p>
+  <a href="{{ url_for('.view_template', service_id=service_id, template_id=template_id) }}">Back to template</a>
+</p>

app/templates/views/templates/edit-template-postage.html

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+{% extends "withnav_template.html" %}
+{% from "components/page-footer.html" import sticky_page_footer %}
+{% from "components/radios.html" import radios %}
+{% from "components/form.html" import form_wrapper %}
+
+{% block service_page_title %}
+  Edit postage
+{% endblock %}
+
+{% block maincolumn_content %}
+
+    <h1 class="heading-large">
+      Edit postage
+    </h1>
+    {% call form_wrapper() %}
+      <div class="grid-row">
+        <div class="column-five-sixths">
+          {{ radios(form.postage) }}
+          {{ sticky_page_footer(
+            'Save'
+          ) }}
+        </div>
+        <aside class="column-three-quarters">
+          {% include "partials/templates/guidance-postage.html" %}
+        </aside>
+      </div>
+    {% endcall %}
+
+{% endblock %}