use id when waiting for message

Author: donchev7

README.md

@@ -31,6 +31,6 @@ const mailBox = await testMail.createNew()
 ### Wait for an email to be received
 
 ```typescript
-const { message } = await testMail.waitForMessage(mailBox.emailAddress)
+const { message } = await testMail.waitForMessage(mailBox.id)
 ```
 

lib/models.ts

@@ -1,4 +1,5 @@
 export interface GetTestMail {
+  id: string;
   emailAddress: string;
   expiresAt: string;
   message?: Message;