style(docs): correctly align last code example in 'About receiving payments' (#677)

Author: MichaelKohler

src/content/docs/publishers/about-receiving.mdx

@@ -175,22 +175,22 @@ The examples below are simplified representations of the Open Payments API calls
      "id": "https://cloudninewallet.example/visitor/outgoing-payments/8c68d3cc-0a0f-4216-98b4-4fa44a6c88cf",
      "walletAddress": "https://cloudninewallet.example/visitor/",
      "receiver": "https://wallet.example/alice/incoming-payments/08394f02-7b7b-45e2-b645-51d04e7c330c",
-       "receiveAmount": {
-         "value": "2",
-         "assetCode": "USD",
-         "assetScale": 2
-       },
-       "debitAmount": {
-         "value": "2",
-         "assetCode": "USD",
-         "assetScale": 2
-       },
-       "sentAmount": {
-         "value": "0",
-         "assetCode": "USD",
-         "assetScale": 2
-       },
-       "createdAt": "2022-03-12T23:20:55.52Z",
-       "updatedAt": "2022-03-12T23:20:55.52Z"
+     "receiveAmount": {
+       "value": "2",
+       "assetCode": "USD",
+       "assetScale": 2
+     },
+     "debitAmount": {
+       "value": "2",
+       "assetCode": "USD",
+       "assetScale": 2
+     },
+     "sentAmount": {
+       "value": "0",
+       "assetCode": "USD",
+       "assetScale": 2
+     },
+     "createdAt": "2022-03-12T23:20:55.52Z",
+     "updatedAt": "2022-03-12T23:20:55.52Z"
    }
    ```