Update asyncio/README.md

asyncio/README.md

@@ -1,6 +1,6 @@
 ## nest_asyncio
 ```python
-'Sync'
+'sync'
 def Sync():
     import asyncio, functools, importlib.util as U
     U.find_spec('nest_asyncio') or os.system('pip install -q nest_asyncio')
@@ -21,9 +21,12 @@ async def Page():
         if callable(method := getattr(page, attr)) and not attr.startswith('_'):
             setattr(page, attr, sync(method))
     return page
-page = Page()
-page.goto('http://example.com')
-print(page.title()) # Example Domain
+
+'main'
+if __name__ == '__main__':
+    page = Page()
+    page.goto('http://example.com')
+    print(page.title()) # Example Domain
 ```
 
 ## threading