Update README.md

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Author: gcatanese

README.md

@@ -516,7 +516,7 @@ const paymentRequest: SaleToPOIRequest = {
 const terminalApiResponse: terminal.TerminalApiResponse = await terminalLocalAPI.request(paymentRequest);
 ```
 ### Using the Cloud Terminal API Integration (async)
-If you choose to integrate [Terminal API over Cloud](https://docs.adyen.com/point-of-sale/design-your-integration/choose-your-architecture/cloud/) **asynchronously**, you need to follow similar steps to initialize the client and prepare the request object. However the response will be asyncronous:
+If you choose to integrate [Terminal API over Cloud](https://docs.adyen.com/point-of-sale/design-your-integration/choose-your-architecture/cloud/) **asynchronously**, you need to follow similar steps to initialize the client and prepare the request object. However the response will be asynchronous:
 * a successful request will return `200` status code and `ok` as response body. Make sure to setup the [event notifications](https://docs.adyen.com/point-of-sale/design-your-integration/notifications/event-notifications/)
 * a request that fails will return `200` status code and the `TerminalApiResponse` as response body
 ``` javascript