update README

README.md

@@ -1,3 +1,33 @@
 ---
+language:
+- en
+- vi
+
+tags:
+- translation
+
 license: apache-2.0
 ---
+
+# MarianMT exported to the ONNX format
+
+## Install Optimum
+```bash
+pip install optimum
+```
+
+## Usage example
+
+```python
+from transformers import AutoTokenizer
+from optimum.onnxruntime import ORTModelForSeq2SeqLM
+tokenizer = AutoTokenizer.from_pretrained("icon-it-tdtu/mt-en-vi-optimum")
+model = ORTModelForSeq2SeqLM.from_pretrained("icon-it-tdtu/mt-en-vi-optimum")
+
+text = "I am a student."
+inputs = tokenizer(text, return_tensors='pt')
+outputs = model.generate(**inputs)
+result = tokenizer.decode(outputs[0], skip_special_tokens=True)
+print(result)
+# Tôi là một sinh viên.
+```