docs: cgroup-v1: use bullet lists for list of stat file tables

The stat file section contains three tables, where the leading texts for
them are subsection heading. Organize them in the bullet list, while
demoting headings into normal text.

Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

Author: bagasme

Documentation/admin-guide/cgroup-v1/memory.rst

@@ -519,60 +519,59 @@ will be charged as a new owner of it.
 5.2 stat file
 -------------
 
-memory.stat file includes following statistics
-
-per-memory cgroup local status
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-
-=============== ===============================================================
-cache		# of bytes of page cache memory.
-rss		# of bytes of anonymous and swap cache memory (includes
-		transparent hugepages).
-rss_huge	# of bytes of anonymous transparent hugepages.
-mapped_file	# of bytes of mapped file (includes tmpfs/shmem)
-pgpgin		# of charging events to the memory cgroup. The charging
-		event happens each time a page is accounted as either mapped
-		anon page(RSS) or cache page(Page Cache) to the cgroup.
-pgpgout		# of uncharging events to the memory cgroup. The uncharging
-		event happens each time a page is unaccounted from the cgroup.
-swap		# of bytes of swap usage
-dirty		# of bytes that are waiting to get written back to the disk.
-writeback	# of bytes of file/anon cache that are queued for syncing to
-		disk.
-inactive_anon	# of bytes of anonymous and swap cache memory on inactive
-		LRU list.
-active_anon	# of bytes of anonymous and swap cache memory on active
-		LRU list.
-inactive_file	# of bytes of file-backed memory and MADV_FREE anonymous memory(
-                LazyFree pages) on inactive LRU list.
-active_file	# of bytes of file-backed memory on active LRU list.
-unevictable	# of bytes of memory that cannot be reclaimed (mlocked etc).
-=============== ===============================================================
-
-status considering hierarchy (see memory.use_hierarchy settings)
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-
-========================= ===================================================
-hierarchical_memory_limit # of bytes of memory limit with regard to hierarchy
-			  under which the memory cgroup is
-hierarchical_memsw_limit  # of bytes of memory+swap limit with regard to
-			  hierarchy under which memory cgroup is.
-
-total_<counter>		  # hierarchical version of <counter>, which in
-			  addition to the cgroup's own value includes the
-			  sum of all hierarchical children's values of
-			  <counter>, i.e. total_cache
-========================= ===================================================
-
-The following additional stats are dependent on CONFIG_DEBUG_VM
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-
-========================= ========================================
-recent_rotated_anon	  VM internal parameter. (see mm/vmscan.c)
-recent_rotated_file	  VM internal parameter. (see mm/vmscan.c)
-recent_scanned_anon	  VM internal parameter. (see mm/vmscan.c)
-recent_scanned_file	  VM internal parameter. (see mm/vmscan.c)
-========================= ========================================
+memory.stat file includes following statistics:
+
+  * per-memory cgroup local status
+
+    =============== ===============================================================
+    cache           # of bytes of page cache memory.
+    rss             # of bytes of anonymous and swap cache memory (includes
+                    transparent hugepages).
+    rss_huge        # of bytes of anonymous transparent hugepages.
+    mapped_file     # of bytes of mapped file (includes tmpfs/shmem)
+    pgpgin          # of charging events to the memory cgroup. The charging
+                    event happens each time a page is accounted as either mapped
+                    anon page(RSS) or cache page(Page Cache) to the cgroup.
+    pgpgout         # of uncharging events to the memory cgroup. The uncharging
+                    event happens each time a page is unaccounted from the
+                    cgroup.
+    swap            # of bytes of swap usage
+    dirty           # of bytes that are waiting to get written back to the disk.
+    writeback       # of bytes of file/anon cache that are queued for syncing to
+                    disk.
+    inactive_anon   # of bytes of anonymous and swap cache memory on inactive
+                    LRU list.
+    active_anon     # of bytes of anonymous and swap cache memory on active
+                    LRU list.
+    inactive_file   # of bytes of file-backed memory and MADV_FREE anonymous
+                    memory (LazyFree pages) on inactive LRU list.
+    active_file     # of bytes of file-backed memory on active LRU list.
+    unevictable     # of bytes of memory that cannot be reclaimed (mlocked etc).
+    =============== ===============================================================
+
+  * status considering hierarchy (see memory.use_hierarchy settings):
+
+    ========================= ===================================================
+    hierarchical_memory_limit # of bytes of memory limit with regard to
+                              hierarchy
+                              under which the memory cgroup is
+    hierarchical_memsw_limit  # of bytes of memory+swap limit with regard to
+                              hierarchy under which memory cgroup is.
+
+    total_<counter>           # hierarchical version of <counter>, which in
+                              addition to the cgroup's own value includes the
+                              sum of all hierarchical children's values of
+                              <counter>, i.e. total_cache
+    ========================= ===================================================
+
+  * additional vm parameters (depends on CONFIG_DEBUG_VM):
+
+    ========================= ========================================
+    recent_rotated_anon       VM internal parameter. (see mm/vmscan.c)
+    recent_rotated_file       VM internal parameter. (see mm/vmscan.c)
+    recent_scanned_anon       VM internal parameter. (see mm/vmscan.c)
+    recent_scanned_file       VM internal parameter. (see mm/vmscan.c)
+    ========================= ========================================
 
 .. hint::
 	recent_rotated means recent frequency of LRU rotation.