ALSA: doc: ReSTize Jack-Controls.txt

A simple conversion from a plain text file.
Put to designs subdirectory.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/Documentation/sound/designs/index.rst b/Documentation/sound/designs/index.rst
index 798b1a4..04dcdae 100644
--- a/Documentation/sound/designs/index.rst
+++ b/Documentation/sound/designs/index.rst
@@ -8,6 +8,7 @@
    channel-mapping-api
    compress-offload
    timestamping
+   jack-controls
    procfile
    powersave
    oss-emulation
diff --git a/Documentation/sound/alsa/Jack-Controls.txt b/Documentation/sound/designs/jack-controls.rst
similarity index 85%
rename from Documentation/sound/alsa/Jack-Controls.txt
rename to Documentation/sound/designs/jack-controls.rst
index fe1c5e0..ae25b15 100644
--- a/Documentation/sound/alsa/Jack-Controls.txt
+++ b/Documentation/sound/designs/jack-controls.rst
@@ -1,3 +1,7 @@
+==================
+ALSA Jack Controls
+==================
+
 Why we need Jack kcontrols
 ==========================
 
@@ -29,11 +33,12 @@
 =========================
 
 In order to keep compatibility, snd_jack_new() has been modified by
-adding two params :-
+adding two params:
 
- - @initial_kctl: if true, create a kcontrol and add it to the jack
-	list.
- - @phantom_jack: Don't create a input device for phantom jacks.
+initial_kctl
+  if true, create a kcontrol and add it to the jack list.
+phantom_jack
+  Don't create a input device for phantom jacks.
 
 HDA jacks can set phantom_jack to true in order to create a phantom
 jack and set initial_kctl to true to create an initial kcontrol with