change docstring

Author: Archmonger

src/reactpy/asgi/middleware.py

@@ -201,7 +201,7 @@ async def __aexit__(self, *_: Any) -> None:
         await super().__aexit__()  # type: ignore
 
     async def run_dispatcher(self) -> None:
-        """Asyncio background task that renders and transmits layout updates of ReactPy components."""
+        """Async background task that renders ReactPy components over a websocket."""
         try:
             # Determine component to serve by analyzing the URL and/or class parameters.
             if self.parent.multiple_root_components: