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README.md

 # Winbank Piraeus Redirect Payment for Drupal 8 Commerce
 
+Install as usual and go to `Commerce > configuration > payment > payment gateways` and add method and choose Winbank from the options provided and fill in the required fields
+
 # Testing
 
-Start the mock server
+Start the mock server and if the payment is set to test it will communicate with the mock server
 ```
+cd web/modules/contrib/commerce_winbank
 npm run mock
 ```
-and if the payment is set to test it will communicate with the mock server
-mock url can also be changed from the UI
+
+The mock urls can be changed from the UI settings
+
+# Technical information for testing account
+
+You need to send Piraeus Bank the following
+```
+Web site URL: https://yourdomain.com
+Referrer URL: https://yourdomain.com/commerce_winbank/callback
+Success URL: https://yourdomain.com/commerce_winbank/callback?action=success
+Failure URL: https://yourdomain.com/commerce_winbank/callback?action=failure
+Backlink URL: https://yourdomain.com/commerce_winbank/callback?action=cancel
+IP address: x.x.x.x
+Answer method: POST
+Installments: No (Currently not implemented)
+Payment method: to appear or not appear (check manual)
+```