Added license

LICENSE

@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2015 Clifton Consulting Group
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -36,7 +36,7 @@ public class Demo {
 
   public function Charge(){
     PayeezyGateway gw = new PayeezyGateway(key, secret, token, url);
-    gw.CreditCardPurchase("4111111111111111", "01", "20", ...);
+    var response = gw.CreditCardPurchase("4111111111111111", "01", "20", ...);
   }
 }
 
@@ -49,4 +49,7 @@ You can find the old integration [here](https://github.com/clifton-io/Clifton.Pa
 
 1. The [developers have stated](https://developer.payeezy.com/content/preferred-integration-first-data) that the RESTful version is intended to be the new version. This means new features will be added to it.
 2. The older SOAP library only supports US merchants while the RESTful version supports US/UK and more countries/regions coming soon.
-3. There are [way more examples available](https://github.com/payeezy/payeezy_direct_API) which show how to integrate with the RESTful APIs (in several programming languages).
+3. There are [way more examples available](https://github.com/payeezy/payeezy_direct_API) which show how to integrate with the RESTful APIs (in several programming languages).
+
+# License
+Clifton.Payment is released under the MIT License. See the [bundled LICENSE](https://github.com/clifton-io/Clifton.Payment/blob/master/LICENSE) file for details.