Update README.md

README.md

@@ -322,13 +322,16 @@ from mistral_common.tokens.tokenizers.mistral import MistralTokenizer
 from mistral_common.protocol.instruct.messages import UserMessage, TextChunk, ImageURLChunk
 from mistral_common.protocol.instruct.request import ChatCompletionRequest
 
-tokenizer = MistralTokenizer.from_file(f"{mistral_models_path}/tokenizer.model.v7")
+tokenizer = MistralTokenizer.v7().instruct_tokenizer
 model = Transformer.from_folder(mistral_models_path)
 
 url = "https://huggingface.co/datasets/patrickvonplaten/random_img/resolve/main/yosemite.png"
 prompt = "Describe the image."
 
-completion_request = ChatCompletionRequest(messages=[UserMessage(content=[ImageURLChunk(image_url=url), TextChunk(text=prompt)])])
+completion_request = ChatCompletionRequest(messages=[
+    SystemMessage(content=SYSTEM_PROMPT)
+    UserMessage(content=[ImageURLChunk(image_url=url), TextChunk(text=prompt)])
+])
 
 encoded = tokenizer.encode_chat_completion(completion_request)