Dependency changed as requested.

Author: amostajo

.gitignore

@@ -1 +1,2 @@
-/vendor
+/vendor
+composer.lock

README.md

@@ -19,6 +19,7 @@ This package comes with:
 ## Contents
 
 - [Installation](#installation)
+- [Adding a service](#adding-a-service)
 - [Gateway Usage](#gateway-usage)
     - [Accessing Omnipay](#accessing-omnipay)
     - [Adding Options](#adding-options)
@@ -45,6 +46,20 @@ Then in your `config/shop.php` add
 
 in the `gateways` array.
 
+## Adding a service
+
+Once installed, the next step will be to add the service of your choice in `composer.json` file.
+
+The services available are listed here:
+
+[https://github.com/thephpleague/omnipay#payment-gateways](https://github.com/thephpleague/omnipay#payment-gateways)
+
+For example, the following dependency must be added to use **Stripe**:
+
+```json
+"omnipay/stripe": "~2.0"
+```
+
 ## Gateway Usage
 
 The following example will give you an idea of how use and access omnipay:

composer.json

@@ -13,7 +13,7 @@
         "php": ">=5.4.0",
         "illuminate/console": "~5.0",
         "illuminate/support": "~5.0",
-        "omnipay/omnipay": "2.0.*"
+        "omnipay/common": "~2.4"
     },
     "require-dev": {
         "sami/sami": "dev-master"