chore: small docs fix

Author: andrepimpao

docs/03x-rules-country.md

@@ -42,7 +42,7 @@ Available options:
 
 ### `message`
 
-type `string` default: `The "{{ name }}" value is not a valid country code, "{{ value }}" given.`
+type: `string` default: `The "{{ name }}" value is not a valid country code, "{{ value }}" given.`
 
 Message that will be shown if the input value is not a valid country code.