[interchange] Note that Mark added Braintree payment module

[Jon Jensen]

commit 381905ae03f8fbdbc57e8a5285c25fb666ed915d
Author: Jon Jensen <jon at endpoint.com>
Date:   Wed Sep 19 15:49:39 2018 -0600

    Note that Mark added Braintree payment module

 doc/WHATSNEW-5.12 |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/doc/WHATSNEW-5.12 b/doc/WHATSNEW-5.12
index d6fa154..cde5826 100644
--- a/doc/WHATSNEW-5.12
+++ b/doc/WHATSNEW-5.12
@@ -73,6 +73,8 @@ Payments
 
 * Updated Vend::Payment::PayPal to latest available version.
 
+* New Braintree payment module.
+
 * Add Gateway Log feature for logging full details of payment gateway requests/
   responses. (See extended section about the GatewayLog later in this document.)