updated readme (#1015)

* updated readme

* updated API explore URL

README.md

@@ -35,7 +35,7 @@ The library supports all webhooks under the following model directories:
 | Webhooks                                                                                          | Description                                                                                                                                                                                                                                                                         | Model Name                                                 | Supported Version |
 |---------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------|-------------------|
 | [Authentication Webhooks](https://docs.adyen.com/api-explorer/Checkout/latest/overview)           | You can use the same integration for payments made with cards (including 3D Secure), mobile wallets, and local payment methods (for example, iDEAL and Sofort).                                                                                                                     | [AcsWebhooks](Adyen/Model/AcsWebhooks)                     | **v1**            |
-| [Configuration Webhooks](https://docs.adyen.com/api-explorer/balanceplatform-webhooks/1/overview) | You can use these webhooks to build your implementation. For example, you can use this information to update internal statuses when the status of a capability is changed.                                                                                                          | [ConfigurationWebhooks](Adyen/Model/ConfigurationWebhooks) | **v1**            |
+| [Configuration Webhooks](https://docs.adyen.com/api-explorer/balanceplatform-webhooks/2/overview) | You can use these webhooks to build your implementation. For example, you can use this information to update internal statuses when the status of a capability is changed.                                                                                                          | [ConfigurationWebhooks](Adyen/Model/ConfigurationWebhooks) | **v2**            |
 | [Transfer Webhooks](https://docs.adyen.com/api-explorer/transfer-webhooks/4/overview)             | You can use these webhooks to build your implementation. For example, you can use this information to update balances in your own dashboards or to keep track of incoming funds.                                                                                                    | [TransferWebhooks](Adyen/Model/TransferWebhooks)           | **v4**            |
 | [Transaction Webhooks](https://docs.adyen.com/api-explorer/transaction-webhooks/4/overview)       | Adyen sends webhooks to inform your system about incoming and outgoing transfers in your platform. You can use these webhooks to build your implementation. For example, you can use this information to update balances in your own dashboards or to keep track of incoming funds. | [TransactionWebhooks](Adyen/Model/TransactionWebhooks)     | **v4**            |
 | [Report Webhooks](https://docs.adyen.com/api-explorer/report-webhooks/1/overview)                 | You can download reports programmatically by making an HTTP GET request, or manually from your Balance Platform Customer Area                                                                                                                                                       | [ReportWebhooks](Adyen/Model/ReportWebhooks)               | **v1**            |