fix cross-refs

Author: Zac-HD

docs/glossary.rst

@@ -103,9 +103,7 @@ The one exception is :func:`trio.open_nursery` and :func:`anyio.create_task_grou
 
 asyncio does not place any guarantees on if or when asyncio functions will
 checkpoint. This means that enabling and adhering to :ref:`ASYNC91x <ASYNC910>`
-will still not guarantee checkpoints on asyncio.
-
-For anyio it will depend on the current backend.
+will still not guarantee checkpoints on asyncio (even if used via anyio).
 
 When using Trio (or an AnyIO library that people might use on Trio), it can be
 very helpful to ensure that your own code adheres to the same guarantees as
@@ -123,7 +121,7 @@ To insert a checkpoint with no other side effects, you can use
 
 Schedule Point
 --------------
-A schedule point is half of a full `checkpoint`, which allows the async backend to switch the running task, but doesn't check for cancellation (the other half is a `cancel_point`).
+A schedule point is half of a full :ref:`checkpoint`, which allows the async backend to switch the running task, but doesn't check for cancellation (the other half is a :ref:`cancel_point`).
 While you are unlikely to need one, they are available as :func:`trio.lowlevel.cancel_shielded_checkpoint`/:func:`anyio.lowlevel.cancel_shielded_checkpoint`, and equivalent to
 
 .. code-block:: python
@@ -143,7 +141,7 @@ asyncio does not have any direct equivalents due to their cancellation model bei
 
 Cancel Point
 ------------
-A schedule point is half of a full `checkpoint`, which will raise :ref:`cancelled` if the enclosing cancel scope has been cancelled, but does not allow the scheduler to switch to a different task (the other half is a `schedule_point`).
+A schedule point is half of a full :ref:`checkpoint`, which will raise :ref:`cancelled` if the enclosing cancel scope has been cancelled, but does not allow the scheduler to switch to a different task (the other half is a :ref:`schedule_point`).
 While you are unlikely to need one, they are available as :func:`trio.lowlevel.checkpoint_if_cancelled`/:func:`anyio.lowlevel.checkpoint_if_cancelled`.
 Users of asyncio might want to use :meth:`asyncio.Task.cancelled`.