Compliance updates visa 2.6 (#204)

Changes to currency code for Curaçao and Sint Maarten

Author: brorbw

website/content/currencies.md

@@ -12,7 +12,8 @@ weight: 230
 | AFN  | 971 | 2   |                              |
 | ALL  | 008 | 2   |                              |
 | AMD  | 051 | 2   |                              |
-| ANG  | 532 | 2   |                              |
+| ANG  | 532 | 2   | Not recognized by Visa       |
+| XCG  | 532 | 2   | Not recognized by Mastercard |
 | AOA  | 973 | 2   |                              |
 | ARS  | 032 | 2   |                              |
 | AUD  | 036 | 2   |                              |