Update README.md to add usage instructions for vllm serving with GLM4V model,...

Update README.md to add usage instructions for vllm serving with GLM4V model, including command syntax and template details.

README.md

@@ -105,7 +105,9 @@ python examples/offline_inference/vision_language.py
 
 `cd examples`
 
+> ```
 > vllm serve model_path  --trust-remote-code --port 8000 --host 0.0.0.0 --allowed-local-media-path xxxx --hf-overrides '{"architectures": ["GLM4VForCausalLM"]}' --chat-template examples/template_chatml.jinja
+> ```
 
 ### OpenAI Completions API和vllm结合使用
 
@@ -200,7 +202,6 @@ text:     	                       What is the content of this image?
     <img src="./doc/llava_gradio.png" width="800" height="500"/>
 </div>
 
-
 ### 精度
 
 无