changed js library to local static file

jdav_web/finance/templates/admin/confirmed_statement.html

@@ -7,7 +7,7 @@
     <script src="{% static 'admin/js/cancel.js' %}" async></script>
     <script type="text/javascript" src="{% static "admin/js/vendor/jquery/jquery.js" %}"></script>
     <script type="text/javascript" src="{% static "admin/js/jquery.init.js" %}"></script>
-    <script type="text/javascript" src="https://cdn.rawgit.com/davidshimjs/qrcodejs/gh-pages/qrcode.js"></script>
+    <script type="text/javascript" src="{% static "js/qrcode.js" %}"></script>
 
 {% endblock %}