MX.yaml in countries-5.7.0

- old
+ new

@@ -8,9 +8,10 @@
   alpha2: MX
   alpha3: MEX
   continent: North America
   country_code: '52'
   currency_code: MXN
+  distance_unit: KM
   g20_member: true
   gec: MX
   geo:
     latitude: 23.634501
     longitude: -102.552784