Update concept-invoice.md

Author: laujan

articles/applied-ai-services/form-recognizer/concept-invoice.md

@@ -207,7 +207,7 @@ See how data, including customer information, vendor details, and line items, is
 | ServiceStartDate | Date | First date for the service period (for example, a utility bill service period) | yyyy-mm-dd |
 | ServiceEndDate | Date | End date for the service period (for example, a utility bill service period) | yyyy-mm-dd|
 | PreviousUnpaidBalance | Number | Explicit previously unpaid balance | Integer |
-| CurrencyCode | String | The currency code associated with the extracted amount |
+| CurrencyCode | String | The currency code associated with the extracted amount | |
 | PaymentDetails | Array | An array that holds Payment Option details such as `IBAN`and `SWIFT` |  |
 | TotalDiscount | Number | The total discount applied to an invoice | Integer |
 | TaxItems (en-IN only) | Array | AN array that holds added tax information such as `CGST`, `IGST`, and `SGST`. This line item is currently only available for the en-in locale  |  |