DOCS/man: document options which are object settings list options

This is already done for other types of list options.

DOCS/man/af.rst

@@ -8,6 +8,8 @@ syntax is:
     Setup a chain of audio filters. See ``--vf`` (`VIDEO FILTERS`_) for the
     full syntax.
 
+    This is an object settings list option. See `List Options`_ for details.
+
 .. note::
 
     To get a full list of available audio filters, see ``--af=help``.

DOCS/man/ao.rst

@@ -10,6 +10,8 @@ syntax is:
 If the list has a trailing ',', mpv will fall back on drivers not contained
 in the list.
 
+This is an object settings list option. See `List Options`_ for details.
+
 .. note::
 
     See ``--ao=help`` for a list of compiled-in audio output drivers sorted by

DOCS/man/options.rst

@@ -6839,6 +6839,8 @@ them.
     macvk
         Vulkan on macOS with a metal surface through a translation layer (experimental)
 
+    This is an object settings list option. See `List Options`_ for details.
+
 ``--gpu-api=<type1,type2,...[,]>``
     Specify a priority list of accepted graphics APIs.
 
@@ -6853,6 +6855,8 @@ them.
     d3d11
         Allow only ``--gpu-context=d3d11``
 
+    This is an object settings list option. See `List Options`_ for details.
+
 ``--opengl-es=<mode>``
     Controls which type of OpenGL context will be accepted:
 

DOCS/man/vf.rst

@@ -23,6 +23,8 @@ The exact syntax is:
     See the ``vf`` command (and ``toggle`` sub-command) for further explanations
     and examples.
 
+    This is an object settings list option. See `List Options`_ for details.
+
     The general filter entry syntax is:
 
         ``["@"<label-name>":"] ["!"] <filter-name> [ "=" <filter-parameter-list> ]``

DOCS/man/vo.rst

@@ -10,6 +10,8 @@ syntax is:
 If the list has a trailing ``,``, mpv will fall back on drivers not contained
 in the list.
 
+This is an object settings list option. See `List Options`_ for details.
+
 .. note::
 
     See ``--vo=help`` for a list of compiled-in video output drivers.