Rename main.py to hello.py in API workshop guide example

Author: Wright4i

src/content/docs/guides/py/api_workshop.mdx

@@ -195,7 +195,7 @@ project-folder/
 ├── venv/
 |  └── ...
 ├── .env
-└── main.py
+└── hello.py
 ```
 </Aside>
 ```python