fix

Author: anordin95

Doc/howto/a-conceptual-overview-of-asyncio.rst

@@ -228,8 +228,8 @@ We'll use the following code example to illustrate::
 In this example, imagine the event loop has passed control to the start of the
 coroutine ``plant_a_tree()``.
 As seen above, the coroutine creates a task and then awaits it.
-The ``await dig_the_hole_task`` instruction adds a callback, which will resume
-``plant_a_tree()``, to the ``dig_the_hole_task`` object's list of callbacks.
+The ``await dig_the_hole_task`` instruction adds a callback (which will resume
+``plant_a_tree()``) to the ``dig_the_hole_task`` object's list of callbacks.
 And then, the instruction cedes control to the event loop.
 Some time later, the event loop will pass control to ``dig_the_hole_task``
 and the task will finish whatever it needs to do.