README.md in ahoy_email-0.2.2 vs README.md in ahoy_email-0.2.3

@@ -204,9 +204,15 @@
 
 ```ruby
 AhoyEmail.track message: false
 ```
 
+Customize domain
+
+```ruby
+track url_options: {host: "mydomain.com"}
+```
+
 Use a different model
 
 ```ruby
 AhoyEmail.message_model = UserMessage
 ```