Fix the prompt format.

Two newlines after <</SYS>>: https://github.com/facebookresearch/llama/blob/main/llama/generation.py#L45

No newlines added after that, but [INST] and [/INST] always have a space around them (except for the last [/INST]): https://github.com/facebookresearch/llama/blob/main/llama/generation.py#L250

README.md

@@ -68,7 +68,8 @@ pip3 install git+https://github.com/huggingface/transformers
 [INST] <<SYS>>
 You are a helpful, respectful and honest assistant. Always answer as helpfully as possible, while being safe.  Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense, or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
 <</SYS>>
-{prompt}[/INST]
+
+{prompt} [/INST]
 ```
 
 To continue a conversation:
@@ -77,8 +78,8 @@ To continue a conversation:
 [INST] <<SYS>>
 You are a helpful, respectful and honest assistant. Always answer as helpfully as possible, while being safe.  Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense, or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
 <</SYS>>
-{prompt}[/INST]{model_reply} 
-[INST]{prompt}[/INST]
+
+{prompt} [/INST] {model_reply} [INST] {prompt} [/INST]
 ```
 
 ## Provided files