Update README.md

Author: nocksapp

README.md

@@ -161,6 +161,7 @@ Gateway | 2.x | 3.x | Composer Package | Maintainer
 [Neteller](https://github.com/dercoder/omnipay-neteller) | ✓ | - | dercoder/omnipay-neteller | [Alexander Fedra](https://github.com/dercoder)
 [NetPay](https://github.com/netpay/omnipay-netpay) | ✓ | - | netpay/omnipay-netpay | [NetPay](https://github.com/netpay)
 [Network Merchants Inc. (NMI)](https://github.com/mfauveau/omnipay-nmi) | ✓ | - | mfauveau/omnipay-nmi | [Matthieu Fauveau](https://github.com/mfauveau)
+[Nocks](https://github.com/nocksapp/checkout-omnipay) | ✓ | - | nocksapp/omnipay-nocks | [Nocks](https://github.com/nocksapp)
 [Oppwa](https://github.com/vdbelt/omnipay-oppwa) | ✓ | - | vdbelt/omnipay-oppwa | [Martin van de Belt](https://github.com/vdbelt)
 [Pacnet](https://github.com/mfauveau/omnipay-pacnet) | ✓ | - | mfauveau/omnipay-pacnet | [Matthieu Fauveau](https://github.com/mfauveau)
 [Pagar.me](https://github.com/descubraomundo/omnipay-pagarme) | ✓ | - | descubraomundo/omnipay-pagarme | [Descubra o Mundo](https://github.com/descubraomundo)