Update rpi_gpio_pwm light component configuration (#7433)

* Update rpi_gpio_pwm light component configuration

* Remove period

source/_components/light.rpi_gpio_pwm.markdown

@@ -33,15 +33,39 @@ light:
         type: simple
 ```
 
-Configuration variables:
-
-- **leds** array (*Required*): Can contain multiple LEDs.
-  - **name** (*Required*): The name of the LED.
-  - **driver** (*Required*): The driver which controls the LED. Choose either `gpio` or `pca9685`.
-  - **pins** (*Required*): The pins connected to the LED as a list.. The order of pins is determined by the specified type.
-  - **type** (*Required*): The type of LED. Choose either `rgb`, `rgbw` or `simple`.
-  - **freq** (*Optional*): The PWM frequency. (Default: `200`)
-  - **address** (*Optional*): The address of the PCA9685 driver. (Default: `0x40`)
+{% configuration %}
+leds:
+  description: Can contain multiple LEDs.
+  required: true
+  type: list
+  keys:
+    name:
+      description: The name of the LED.
+      required: true
+      type: string
+    driver:
+      description: The driver which controls the LED. Choose either `gpio` or `pca9685`.
+      required: true
+      type: string
+    pins:
+      description: The pins connected to the LED as a list. The order of pins is determined by the specified type.
+      required: true
+      type: [list, integer]
+    type:
+      description: The type of LED. Choose either `rgb`, `rgbw` or `simple`.
+      required: true
+      type: string
+    freq:
+      description: The PWM frequency.
+      required: false
+      default: 200
+      type: integer
+    address:
+      description: The address of the PCA9685 driver.
+      required: false
+      default: 0x40
+      type: string
+{% endconfiguration %}
 
 ## {% linkable_title Examples %}