Add tokenizer configuration

tokenizer_config.json

@@ -1,5 +1,5 @@
 {
-    "do_lower_case": false,
-    "word_tokenizer_type": "mecab",
-    "subword_tokenizer_type": "wordpiece"
+  "do_lower_case": false,
+  "subword_tokenizer_type": "wordpiece",
+  "word_tokenizer_type": "mecab"
 }