Change Peruvian Sol (PEN) decimal mark and thousands separator

Author: Sija

data/currencies/pen.json

@@ -7,7 +7,7 @@
   "subunit_to_unit": 100,
   "symbol_first": true,
   "html_entity": "S/",
-  "decimal_mark": ".",
-  "thousands_separator": ",",
+  "decimal_mark": ",",
+  "thousands_separator": ".",
   "smallest_denomination": 1
 }