Update README.md

README.md

@@ -13,3 +13,16 @@ Because the repositories are private you need to do the folowing:
 
 ## API Library
 Not yet used but communication through the API will go through this library. If you not have access to this repo please let us know.
+
+## Setting up cronjob
+The notifications of Adyen (this will give you the indication of the payment status) is processed by a cronjob. You need to setup your cronjob. <a href="http://devdocs.magento.com/guides/v2.0/config-guide/cli/config-cli-subcommands-cron.html#config-cli-cron-group-run" target="_blank">This is described</a>
+
+We have defined this:
+
+```
+<group id="index">
+    <job name="adyen_payment_process_notification" instance="Adyen\Payment\Model\Cron" method="processNotification">
+        <schedule>*/1 * * * *</schedule>
+    </job>
+</group>
+```