README.md in notifications-ruby-client-2.2.0 vs README.md in notifications-ruby-client-2.3.0

@@ -135,10 +135,11 @@
   personalisation: {
     name: "name",
     year: "2016"
   },
   reference: "your_reference_string"
+  email_reply_to_id: email_reply_to_id
 ) # => Notifications::Client::ResponseNotification
 ```
 
 <details>
 <summary>
@@ -385,10 +386,16 @@
 }
 ```
 
 The fields `address_line_1`, `address_line_2` and `postcode` are required.
 
+#### `email_reply_to_id`
+
+Optional. Specifies the identifier of the email reply-to address to set for the notification. The identifiers are found in your service Settings, when you 'Manage' your 'Email reply to addresses'. 
+
+If you omit this argument your default email reply-to address will be set for the notification.
+
 ### Get the status of one message
 
 ```ruby
 notification = client.get_notification(id) # => Notifications::Client::Notification
 ```
@@ -725,10 +732,10 @@
 
 
 ## Generate a preview template
 This will return the contents of a template with the placeholders replaced with the given personalisation.
 ```ruby
-templatePreview = client.generate_template_preview(template_id: template_id,
+templatePreview = client.generate_template_preview(template_id,
                                                   personalisation: {
                                                       name: "name",
                                                       year: "2016",                      
                                                     })
 ```