Update README.md

README.md

@@ -420,10 +420,10 @@ Keychain.requestSharedWebCredential { (credentials, error) -> () in
 
 #### Generate strong random password
 
-Generate strong random password that is in the same format used by Safari autofill.
+Generate strong random password that is in the same format used by Safari autofill (xxx-xxx-xxx-xxx).
 
 ```swift
-let password = Keychain.generatePassword()
+let password = Keychain.generatePassword() // => Nhu-GKm-s3n-pMx
 ```
 
 #### How to set up Shared Web Credentials