chore: update readme

Author: hansemannn

README.md

@@ -4,16 +4,17 @@ Use the iOS 16+ PassKeys APIs in Titanium!
 
 ## Requirements
 
-- [x] Xcode 14+
-- [x] iOS 16+
+- [x] Xcode 14+ and iOS 16+
 - [x] A server to generate the challenge used to authenticate
+- [x] Read [this document](https://developer.apple.com/documentation/authenticationservices/public-private_key_authentication/supporting_passkeys) to understand when and how to use pass keys along with your other tech stack
 - [x] Proper [AASA setup](https://blog.branch.io/what-is-an-aasa-apple-app-site-association-file) for your domain, e.g.:
 ```json
 {
   "webcredentials": {
     "apps": [ "A1B2C3D4E5.com.example.app" ]
   }
 }
+```
 
 ## Example