message: Fix readme to include you need a scope to use a helper
diff: @@ -56,6 +56,7 @@ In Xero a user can belong to multiple organisations. Tokens are ultimately assoc
  **Step 2:** Call `apiCallback` to get your tokenSet
  **Step 3:** Call `updateTenats` to populate additional tenant data
  +*You will need to have the `accounting.settings` scope in order to use this helper*
  **NOTE:** If you have already authorized the user and have stored a valid tokenSet, you can create a `new XeroClient()` and refresh your token without triggering the openid-client dependency:
  ```js
  