Update README.md (deepseek-ai#39)

README.md

@@ -317,10 +317,11 @@ messages_list = [
     [{"role": "user", "content": "What can you do?"}],
     [{"role": "user", "content": "Explain Transformer briefly."}],
 ]
-prompts = [tokenizer.apply_chat_template(messages, add_generation_prompt=True, tokenize=False) for messages in messages_list]
+# Avoid adding bos_token repeatedly
+prompt_token_ids = [tokenizer.apply_chat_template(messages, add_generation_prompt=True) for messages in messages_list]
 
 sampling_params.stop = [tokenizer.eos_token]
-outputs = llm.generate(prompts, sampling_params)
+outputs = llm.generate(prompt_token_ids=prompt_token_ids, sampling_params=sampling_params)
 
 generated_text = [output.outputs[0].text for output in outputs]
 print(generated_text)