doctordebug

README.MD is using property webcheckoutdetail in stead of webcheckoutdetailS

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See the follwing sections ### Making a createCheckoutSession request ```java JSONObject payload = new JSONObject(); JSONObject webCheckoutDetail = new JSONObject(); webCheckoutDetail.put("checkoutReviewReturnUrl", "https://localhost/store/checkout_review"); payload.put("webCheckoutDetail", webCheckoutDetail); ### Making an updateCheckoutSession request AmazonPayResponse...