Add usage section

README.md

@@ -16,4 +16,42 @@ tags:
 
 **FINAL FANTASY is a registered trademark of Square Enix Holdings Co., Ltd.**
 
-This project is detailed on the [Github repo](https://github.com/sappho192/ffxiv-ja-ko-translator).
+This project is detailed on the [Github repo](https://github.com/sappho192/ffxiv-ja-ko-translator).
+
+
+# Usage
+
+Refer to the `test_eval.ipynb`.
+
+## Inference
+
+```Python
+from transformers import(
+    EncoderDecoderModel,
+    PreTrainedTokenizerFast,
+    BertJapaneseTokenizer,
+)
+
+import torch
+
+encoder_model_name = "cl-tohoku/bert-base-japanese-v2"
+decoder_model_name = "skt/kogpt2-base-v2"
+
+src_tokenizer = BertJapaneseTokenizer.from_pretrained(encoder_model_name)
+trg_tokenizer = PreTrainedTokenizerFast.from_pretrained(decoder_model_name)
+
+# You should change following `./best_model` to the path of model **directory**
+model = EncoderDecoderModel.from_pretrained("./best_model")
+
+text = "ギルガメッシュ討伐戦"
+# text = "ギルガメッシュ討伐戦に行ってきます。一緒に行きましょうか？"
+
+def translate(text_src):
+    embeddings = src_tokenizer(text_src, return_attention_mask=False, return_token_type_ids=False, return_tensors='pt')
+    embeddings = {k: v for k, v in embeddings.items()}
+    output = model.generate(**embeddings)[0, 1:-1]
+    text_trg = trg_tokenizer.decode(output.cpu())
+    return text_trg
+
+print(translate(text))
+```