DOCS/man: add more --input-ipc-client references

Mention the alternative ipc method through fd inheritance.
Also fix a grammar mistake.

DOCS/man/ipc.rst

@@ -3,8 +3,10 @@ JSON IPC
 
 mpv can be controlled by external programs using the JSON-based IPC protocol.
 It can be enabled by specifying the path to a unix socket or a named pipe using
-the option ``--input-ipc-server``. Clients can connect to this socket and send
-commands to the player or receive events from it.
+the option ``--input-ipc-server``, or the file descriptor number of a unix socket
+or a named pipe using ``--input-ipc-client``.
+Clients can connect to this socket and send commands to the player or receive
+events from it.
 
 .. warning::
 

DOCS/man/mpv.rst

@@ -1034,17 +1034,17 @@ There are three choices for using mpv from other programs or scripts:
 
        Your code should work even if you pass ``--terminal=no``. Do not attempt
        to simulate user input by sending terminal control codes to mpv's stdin.
-       If you need interactive control, using ``--input-ipc-server`` is
-       recommended. This gives you access to the `JSON IPC`_  over unix domain
-       sockets (or named pipes on Windows).
+       If you need interactive control, using ``--input-ipc-server`` or
+       ``--input-ipc-client`` is recommended. This gives you access to the
+       `JSON IPC`_  over unix domain sockets (or named pipes on Windows).
 
        Depending on what you do, passing ``--no-config`` or ``--config-dir`` may
        be a good idea to avoid conflicts with the normal mpv user configuration
        intended for CLI playback.
 
-       Using ``--input-ipc-server`` is also suitable for purposes like remote
-       control (however, the IPC protocol itself is not "secure" and not
-       intended to be so).
+       Using ``--input-ipc-server`` or ``--input-ipc-client`` is also suitable for
+       purposes like remote control (however, the IPC protocol itself is not
+       "secure" and not intended to be so).
 
     2. Using libmpv. This is generally recommended when mpv is used as playback
        backend for a completely different application. The provided C API is

DOCS/man/options.rst

@@ -4229,8 +4229,8 @@ Input
     ``--input-ipc-server``, except no socket is created, and instead the passed
     FD is treated like a socket connection received from ``accept()``. In
     practice, you could pass either a FD created by ``socketpair()``, or a pipe.
-    In both cases, you must sure the FD is actually inherited by mpv (do not
-    set the POSIX ``CLOEXEC`` flag).
+    In both cases, you must make sure that the FD is actually inherited by mpv
+    (do not set the POSIX ``CLOEXEC`` flag).
 
     The player quits when the connection is closed.