update README: reorder FlagOS and model download steps

README.md

@@ -65,21 +65,21 @@ FlagEval (Libra)** is a comprehensive evaluation system and open platform for la
 
 ## Operation Steps【***need two machines***】
 
-### Download Open-source Model Weights
+### Download FlagOS Image
 
-**Execution under shared storage on master node IP**
+**Dual-machine execution**
 
 ```python
-pip install modelscope
-modelscope download --model moonshotai/Kimi-K2-Instruct --local_dir /share/models/Kimi-K2-Instruct
+docker pull harbor.baai.ac.cn/flagrelease-public/flagrelease_nvidia_kimi_k2
 ```
 
-### Download FlagOS Image
+### Download Open-source Model Weights
 
-**Dual-machine execution**
+**Execution under shared storage on master node IP**
 
 ```python
-docker pull harbor.baai.ac.cn/flagrelease-public/flagrelease_nvidia_kimi_k2
+pip install modelscope
+modelscope download --model moonshotai/Kimi-K2-Instruct --local_dir /share/models/Kimi-K2-Instruct
 ```
 
 ### Start the inference service