--- a/doc/demo_milestone1-2.md
+++ b/doc/demo_milestone1-2.md
@@ -30,19 +30,19 @@
 Before we continue, we need to do some preparations in the UI: Add NFT Data types so that the UI knows how to decode them. Go to [Settings-Developer Tab](https://polkadot.js.org/apps/#/settings/developer) and add following types to the JSON object in there:
 ```
 {
-  "Address": "AccountId",
-  "LookupSource": "AccountId",
-  "Weight": "u32",  
   "NftItemType": {
     "Collection": "u64",
     "Owner": "AccountId",
     "Data": "Vec<u8>"
   },
   "CollectionType": {
+    "Owner": "AccountId",
     "NextItemId": "u64",
-    "Owner": "AccountId",
     "CustomDataSize": "u32"
-  }
+  },
+  "Address": "AccountId",
+  "LookupSource": "AccountId",
+  "Weight": "u32"
 }
 ```