update config

config.json

 {
   "repo": "http://localhost:8080/repo/",
+  "portal": {
+    "back": "Back to Stash",
+    "URL": "https://stash-uat.research.uts.edu.au/",
+    "helpURL": "https://stash-uat.research.uts.edu.au/default/rdmp/getAdvice"
+  },
   "api": "/solr/public_ocfl",
   "dev": {
     "proxy": {

src/index.js

@@ -15,9 +15,9 @@ let state = {
     URL: '/',
     logo: 'images/logo.svg',
     help: 'Help',
-    helpURL: '',
-    portal: 'Back to Stash',
-    portalURL: 'http://stash.research.uts.edu.au',
+    helpURL: config.portal.helpURL,
+    portal: config.portal.back,
+    portalURL: config.portal.URL,
     menu: [
       {id: 'back', name: 'Back'}
     ]