From 62f6440ce8f435ffe6c82e93533443e007c33aee Mon Sep 17 00:00:00 2001
From: Eileen McNaughton <eileen@mcnaughty.com>
Date: Wed, 2 Jun 2021 04:50:17 +1200
Subject: [PATCH] Docs update to go with PR on cardReference (#630)

https://github.com/thephpleague/omnipay-common/pull/243
---
 README.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/README.md b/README.md
index 67d9f74e..a79d3b55 100644
--- a/README.md
+++ b/README.md
@@ -470,6 +470,8 @@ $response->getMessage(); // a message generated by the payment gateway
 ```
 
 In addition, most gateways will override the response object, and provide access to any extra fields returned by the gateway.
+If the payment authorization is re-usable the gateway will implement ```$response->getCardReference();```. This
+method is always available (but may return NULL) from 3.1.1
 
 ### Redirect Response