Updated Readme.md (thephpleague#546)

I am developer from eGHL. I can see that someone else 'XU Ding' already added omnipay integration with eGHL. What do you suggest about duplication?

Author: jhumayun

README.md

@@ -132,6 +132,7 @@ Gateway | 2.x | 3.x | Composer Package | Maintainer
 [Datatrans](https://github.com/academe/omnipay-datatrans) | ✓ | ✓ | academe/omnipay-datatrans | [Jason Judge](https://github.com/judgej)
 [Docdata Payments](https://github.com/Uskur/omnipay-docdata-payments) | ✓ | - | uskur/omnipay-docdata-payments | [Uskur](https://github.com/Uskur)
 [Dummy](https://github.com/thephpleague/omnipay-dummy) | ✓ | ✓ | omnipay/dummy | [Del](https://github.com/delatbabel)
+[eGHL](https://bitbucket.org/eghl/eghl-omnipay/src/master/) | - | ✓ | e-ghl/omnipay | [Jawad Humayun](https://bitbucket.org/jawad242/)
 [eGHL](https://github.com/dilab/omnipay-eghl) | ✓ | ✓ | dilab/omnipay-eghl | [Xu Ding](https://github.com/dilab)
 [eCoin](https://github.com/hiqdev/omnipay-ecoin) | ✓ | - | hiqdev/omnipay-ecoin | [HiQDev](https://github.com/hiqdev)
 [ecoPayz](https://github.com/dercoder/omnipay-ecopayz) | ✓ | - | dercoder/omnipay-ecopayz | [Alexander Fedra](https://github.com/dercoder)