Update README.md

README.md

@@ -241,7 +241,8 @@ export OPENAI_API_KEY="your-api-key-here"
 export BASE_URL="https://your-model-endpoint.example.com/v1"
 ```
 
-Example:
+<details>
+  <summary>Click to expand python code example</summary>
 
 ```python
 import json
@@ -422,6 +423,8 @@ if __name__ == "__main__":
     main()
 ```
 
+</details>
+
 ## License
 
 MiroThinker v1.0 is released under the MIT License.