docs: add com.apple.developer.contacts.notes entitlement requirement

Author: codebytere

README.md

@@ -22,6 +22,8 @@ In your app, you should put the reason you're requesting to manipulate user's co
 
 If you're using macOS 12.3 or newer, you'll need to ensure you have Python installed on your system, as macOS does not bundle it anymore.
 
+**Note:** The `note` field requires the [`com.apple.developer.contacts.notes`](https://developer.apple.com/documentation/bundleresources/entitlements/com_apple_developer_contacts_notes) entitlement. Before you submit an app with this entitlement to the App Store, you'll need to get permission to use the entitlement. Request permission using [this form](https://developer.apple.com/contact/request/contact-note-field).
+
 ## API
 
 ### `contacts.requestAccess()`