Docs/admin-guide/mm/damon/usage: move debugfs intro to the bottom of the section

On the DAMON usage introduction section, the introduction of DAMON
debugfs interface, which is deprecated, is above kernel API, which is
actively supported.  Move the DAMON debugfs intro to bottom, so that
readers have less chances to read it.

Link: https://lkml.kernel.org/r/20230907022929.91361-4-sj@kernel.orgSigned-off-by: SeongJae Park <sj@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

Documentation/admin-guide/mm/damon/usage.rst

@@ -20,18 +20,18 @@ DAMON provides below interfaces for different users.
   you can write and use your personalized DAMON sysfs wrapper programs that
   reads/writes the sysfs files instead of you.  The `DAMON user space tool
   <https://github.com/awslabs/damo>`_ is one example of such programs.
-- *debugfs interface. (DEPRECATED!)*
-  :ref:`This <debugfs_interface>` is almost identical to :ref:`sysfs interface
-  <sysfs_interface>`.  This is deprecated, so users should move to the
-  :ref:`sysfs interface <sysfs_interface>`.  If you depend on this and cannot
-  move, please report your usecase to damon@lists.linux.dev and
-  linux-mm@kvack.org.
 - *Kernel Space Programming Interface.*
   :doc:`This </mm/damon/api>` is for kernel space programmers.  Using this,
   users can utilize every feature of DAMON most flexibly and efficiently by
   writing kernel space DAMON application programs for you.  You can even extend
   DAMON for various address spaces.  For detail, please refer to the interface
   :doc:`document </mm/damon/api>`.
+- *debugfs interface. (DEPRECATED!)*
+  :ref:`This <debugfs_interface>` is almost identical to :ref:`sysfs interface
+  <sysfs_interface>`.  This is deprecated, so users should move to the
+  :ref:`sysfs interface <sysfs_interface>`.  If you depend on this and cannot
+  move, please report your usecase to damon@lists.linux.dev and
+  linux-mm@kvack.org.
 
 .. _sysfs_interface: