Add Tuya Switch docs (#625)

* Add Tuya Switch docs

* Fix underline

* Remove common tuya documentation

* use tuya image for tuya stuff

Co-authored-by: Guillermo Ruffino <glm.net@gmail.com>

components/switch/tuya.rst

@@ -0,0 +1,48 @@
+Tuya Switch
+===========
+
+.. seo::
+    :description: Instructions for setting up a Tuya device switch.
+    :image: upload.svg
+
+The ``tuya`` switch platform creates a sensor from a tuya serial component
+and requires :doc:`/components/tuya` to be configured.
+
+.. code-block:: text
+
+    [13:46:01][C][tuya:023]: Tuya:
+    [13:46:01][C][tuya:032]:   Datapoint 1: switch (value: OFF)
+    [13:46:01][C][tuya:032]:   Datapoint 2: switch (value: OFF)
+    [13:46:01][C][tuya:034]:   Datapoint 3: int value (value: 19)
+    [13:46:01][C][tuya:034]:   Datapoint 4: int value (value: 17)
+    [13:46:01][C][tuya:034]:   Datapoint 5: int value (value: 0)
+    [13:46:01][C][tuya:036]:   Datapoint 7: enum (value: 1)
+    [13:46:01][C][tuya:046]:   Product: '{"p":"ynjanlglr4qa6dxf","v":"1.0.0","m":0}'
+
+On this controller, the datapoint 2 represents the child lock switch
+setting which is what we are interested in controlling using this platform.
+
+Based on this, you can create the switch as follows:
+
+.. code-block:: yaml
+
+    # Create a switch
+    switch:
+      - platform: "tuya"
+        name: "MySwitch"
+        switch_datapoint: 2
+
+Configuration variables:
+------------------------
+
+- **id** (*Optional*, :ref:`config-id`): Manually specify the ID used for code generation.
+- **name** (**Required**, string): The name of the switch.
+- **switch_datapoint** (**Required**, int): The datapoint id number of the switch.
+- All other options from :ref:`Switch <config-switch>`.
+
+See Also
+--------
+
+- :doc:`/components/switch/index`
+- :apiref:`tuya/switch/tuya_switch.h`
+- :ghedit:`Edit`

index.rst

@@ -224,7 +224,7 @@ Light Components
     NeoPixelBus Light, components/light/neopixelbus, color_lens.svg
 
     Light Partition, components/light/partition, color_lens.svg
-    Tuya Dimmer, components/light/tuya, brightness-medium.svg
+    Tuya Dimmer, components/light/tuya, tuya.png
     Custom Light, components/light/custom, language-cpp.svg
 
 Looking for WS2811 and similar individually addressable lights? Have a look at the
@@ -243,6 +243,7 @@ Switch Components
     Template Switch, components/switch/template, description.svg
     UART Switch, components/switch/uart, uart.svg
     Custom Switch, components/switch/custom, language-cpp.svg
+    Tuya Switch, components/switch/tuya, tuya.png
 
 Fan Components
 --------------
@@ -252,7 +253,7 @@ Fan Components
     Fan Core, components/fan/index, folder-open.svg
     Binary Fan, components/fan/binary, fan.svg
     Speed Fan, components/fan/speed, fan.svg
-    Tuya Fan, components/fan/tuya, fan.svg
+    Tuya Fan, components/fan/tuya, tuya.png
 
 Display Components
 ------------------