Docstring update for AsyncioDispatcher

Author: AlexanderWells-diamond

softioc/asyncio_dispatcher.py

@@ -9,7 +9,7 @@ class AsyncioDispatcher(threading.Thread):
     created.
     """
     def __init__(self):
-        """Create the AsyncioDispatcher."""
+        """Create an AsyncioDispatcher suitable to be used by `softioc.iocInit`."""
         # Docstring specified to suppress threading.Thread's docstring, which
         # would otherwise be inherited by this method and be misleading.
         super().__init__()