[XBAP-28451] Update preexisting description problem, swapping overpayment for prepayment

Author: ReubenReeves

xero_accounting.yaml

@@ -12319,7 +12319,7 @@ paths:
             type: string
         - in: query
           name: page
-          description: e.g. page=1 – Up to 100 prepayments will be returned in a single API call with line items shown for each overpayment
+          description: e.g. page=1 – Up to 100 prepayments will be returned in a single API call with line items shown for each prepayment
           example: 1
           schema:
             type: integer