Update README.md

README.md

@@ -19,7 +19,7 @@ ctransformers example
 pip install ctransformers
 
 
-
+```
 from ctransformers import AutoModelForCausalLM
 
 llm = AutoModelForCausalLM.from_pretrained("llama2-7f-fp16-ggml-q4.bin", 
@@ -28,3 +28,4 @@ llm = AutoModelForCausalLM.from_pretrained("llama2-7f-fp16-ggml-q4.bin",
                                            max_new_tokens=50, 
                                            stop=["###","##"],
                                            threads=4)  # 4 cpu threads to limit cpu
+```