Merge pull request thephpleague#321 from mbbender/patch-1

Update README.md

Author: greydnls

README.md

@@ -8,7 +8,7 @@
 
 Omnipay is a payment processing library for PHP. It has been designed based on
 ideas from [Active Merchant](http://activemerchant.org/), plus experience implementing
-dozens of gateways for [CI Merchant](http://ci-merchant.org/). It has a clear and consistent API,
+dozens of gateways for [CI Merchant]. It has a clear and consistent API,
 is fully unit tested, and even comes with an example application to get you started.
 
 **Why use Omnipay instead of a gateway's official PHP package/example code?**