Fix print statement in example snippet

README.md

@@ -149,7 +149,7 @@ completion = client.chat.completions.create(
     messages=[{"role": "User", "content": "Hallo"}],
     extra_body={"chat_template":"DE"}
 )
-print(f"Assistant: {completion]")
+print(f"Assistant: {completion}")
 ```
 The default language of the Chat-Template can also be set when starting the vLLM Server. For this create a new file with the name `lang` and the content `DE` and start the vLLM Server as follows:
 ``` shell