Update docs on TaskData

TUTORIAL.md

@@ -1026,21 +1026,13 @@ from the signature of [`poll`] we also see that it has mutable access to
 this task. The [`Task`] API leverages these facts and allows you to store
 data inside a `Task`.
 
-Data is stored inside a `Task` with [`insert`] which returns a [`TaskData`]
+Data associated with a `Task` with [`TaskData::new`] to return a [`TaskData`]
 handle. This handle can then be cloned regardless of the underlying data. To
-access the data at a later time you can use the [`get`] or [`get_mut`] methods.
+access the data at a later time you can use the [`with`] methods.
 
-[`insert`]: http://alexcrichton.com/futures-rs/futures/struct.Task.html#method.insert
-[`TaskData`]: http://alexcrichton.com/futures-rs/futures/struct.TaskData.html
-[`get`]: http://alexcrichton.com/futures-rs/futures/struct.Task.html#method.get
-[`get_mut`]: http://alexcrichton.com/futures-rs/futures/struct.Task.html#method.get_mut
-
-A [`TaskData`] can also be created with the [`store`] future which will resolve
-to a handle to the data being stored. Currently there is no combinator for
-accessing data from a task and it's primarily used in manual implementations of
-[`Future`], but this may change soon!
-
-[`store`]: http://alexcrichton.com/futures-rs/futures/fn.store.html
+[`TaskData`]: http://alexcrichton.com/futures-rs/futures/task/struct.TaskData.html
+[`TaskData::new`]: http://alexcrichton.com/futures-rs/futures/task/struct.TaskData.html#method.new
+[`with`]: http://alexcrichton.com/futures-rs/futures/task/struct.TaskData.html#method.with
 
 ---