Fix an inconsistency

README.md

@@ -482,7 +482,7 @@ print(response.choices[0].message.content)
 ```bash
 curl -sS http://localhost:8000/v1/chat/completions \
   -H "Content-Type: application/json" \
-  -d '{"model":"nvidia/nemotron-nano-v3-omni","messages":[{"role":"user","content":"Hello, what can you do?"}],"temperature":1.0,"top_k":1}' \
+  -d '{"model":"nvidia/Nemotron-3-Nano-Omni-30B-A3B-Reasoning-NVFP4","messages":[{"role":"user","content":"Hello, what can you do?"}],"temperature":1.0,"top_k":1}' \
   | python3 -c "import sys,json; print(json.load(sys.stdin)['choices'][0]['message']['content'])"
 ```
  
@@ -517,7 +517,7 @@ USER_PROMPT = (
     "Do not invent text you cannot read."
 )
 API_URL = "http://localhost:8000/v1/chat/completions"
-MODEL = "nvidia/nemotron-nano-v3-omni"
+MODEL = "nvidia/Nemotron-3-Nano-Omni-30B-A3B-Reasoning-NVFP4"
 MAX_TOKENS = 32000
 DPI = 150