README.md in stripe-i18n-1.2.0 vs README.md in stripe-i18n-1.3.0

- old
+ new

@@ -15,9 +15,10 @@
 1. it (Italian)
 1. nl (Dutch)
 1. pt-BR (Portuguese - Brazil)
 1. ru (Russian)
 1. nb (Norwegian)
+1. ja (Japanese)
 
 ## Installation
 
 Add this line to your application's Gemfile:
 