Add autocomplete widget and fix some errors

members/templates/payment_add.html

@@ -4,6 +4,11 @@
 {% load i18n %}
 
 {% block content %}
+<script
+  src="https://code.jquery.com/jquery-3.2.1.min.js"
+  integrity="sha256-hwg4gsxgFZhOsEEamdOYGBf13FyQuiTwlAQgxVSNgt4="
+  crossorigin="anonymous"></script>
+
 <div>
     <h3>{% trans "Add payment" %}</h3>
 
@@ -18,4 +23,7 @@
         </form>
     </div>
 </div>
+
+{{ form.media }}
+
 {% endblock content %}