Correct Japanese ISO 639-1 code

README.md

@@ -5,14 +5,14 @@ A Minimalist Text Adventure Game
 
 [Click to play](http://adarkroom.doublespeakgames.com/)
 
-Language | Options
--------- | --------
-[Chinese](http://adarkroom.doublespeakgames.com/?lang=cn) | [French](http://adarkroom.doublespeakgames.com/?lang=fr) 
+Available | Languages
+--------- | ---------
+[Chinese](http://adarkroom.doublespeakgames.com/?lang=zh_cn) | [French](http://adarkroom.doublespeakgames.com/?lang=fr) 
 [German](http://adarkroom.doublespeakgames.com/?lang=de) | [Italian](http://adarkroom.doublespeakgames.com/?lang=it)
-[Japanese](http://adarkroom.doublespeakgames.com/?lang=jp) | [Korean](http://adarkroom.doublespeakgames.com/?lang=kr)
+[Japanese](http://adarkroom.doublespeakgames.com/?lang=ja) | [Korean](http://adarkroom.doublespeakgames.com/?lang=ko)
 [Polish](http://adarkroom.doublespeakgames.com/?lang=pl) | [Portuguese](http://adarkroom.doublespeakgames.com/?lang=pg)
 [Russian](http://adarkroom.doublespeakgames.com/?lang=ru) | [Spanish](http://adarkroom.doublespeakgames.com/?lang=es)
 [Swedish](http://adarkroom.doublespeakgames.com/?lang=sv) | [Turkish](http://adarkroom.doublespeakgames.com/?lang=tr)
-[Ukrainian](http://adarkroom.doublespeakgames.com/?lang=uk) 
+[Ukrainian](http://adarkroom.doublespeakgames.com/?lang=uk) |
 
 [Play on GitHub](http://continuities.github.io/adarkroom)

lang/langs.js

@@ -4,9 +4,8 @@ var langs = {
 	'es':'español',
 	'fr':'français',
 	'it':'italiano',
-	'jp':'日本',
+	'ja':'日本',
 	'ko':'한국어',
-	'kr':'한국어',
 	'pg':'português',
 	'pl':'polski',
 	'ru':'русский',