Add host option for rpi_gpio_pwm component (#12028)

* Add host option for rpi_gpio_pwm component

* ✏️ Tweak

* Applied textlint fixes

* Update source/_integrations/rpi_gpio_pwm.markdown

Co-Authored-By: springstan <46536646+springstan@users.noreply.github.com>

Co-authored-by: Klaas Schoute <klaas_schoute@hotmail.com>
Co-authored-by: springstan <46536646+springstan@users.noreply.github.com>

source/_integrations/rpi_gpio_pwm.markdown

@@ -8,7 +8,7 @@ ha_release: 0.43
 logo: raspberry-pi.png
 ---
 
-The `rpi_gpio_pwm` platform allows to control multiple lights using pulse-width modulation, for example LED strips. It supports one-color, RGB and RGBW LEDs driven by GPIOs of a Raspberry Pi or a PCA9685 controller.
+The `rpi_gpio_pwm` platform allows to control multiple lights using pulse-width modulation, for example LED strips. It supports one-color, RGB and RGBW LEDs driven by GPIOs of a Raspberry Pi (same host or remote) or a PCA9685 controller.
 
 For controlling the GPIOs, the platform connects to the [pigpio-daemon](http://abyz.me.uk/rpi/pigpio/pigpiod.html), which must be running. On Raspbian Jessie 2016-05-10 or newer the `pigpio` library is already included. On other operating systems it needs to be installed first (see [installation instructions](https://github.com/soldag/python-pwmled#installation)).
 
@@ -59,6 +59,10 @@ leds:
       required: false
       default: 0x40
       type: string
+    host:
+      description: The remote host address for the GPIO driver.
+      required: false
+      type: string
 {% endconfiguration %}
 
 ## Examples
@@ -94,3 +98,17 @@ light:
         pins: [3, 4, 5, 6] # [R, G, B, W]
         type: rgbw
 ```
+
+### RGB LED connected to the GPIO pins of an remote Raspberry Pi.
+
+On the Raspberry Pi the pigpio daemon is running on the default port 6666.
+
+```yaml
+# Example configuration.yaml entry
+light:
+  - platform: rpi_gpio_pwm
+    leds:
+      - name: Lightstrip Sideboard
+        driver: gpio
+        host: 192.168.0.66
+```