added rgb_order configuration

README.md

@@ -51,6 +51,9 @@ The component exposes an RGB light and supports all
 
 - **chipset** (*Optional*, string): `APA102` or `WS2801`. Defaults to `APA102`.
 - **num_leds** (*Optional*, int): Number of LEDs in the strip. Defaults to `1`.
+- **rgb_order** (*Optional*, string): The order in which the color bytes of each LED are sent.
+  One of `RGB`, `RBG`, `GRB`, `GBR`, `BGR`, `BRG`. Defaults to `BGR` for `APA102` and `RGB` for `WS2801`.
+  Change this if the colors on your strip come out swapped.
 - **data_rate** (*Optional*): SPI clock frequency. Defaults to `1MHz`.
 - **spi_id** (*Optional*, ID): The SPI bus to use, if more than one is configured.
 - All other options from [Light](https://esphome.io/components/light/#config-light).
@@ -69,6 +72,7 @@ light:
     name: "WS2801 Strip"
     chipset: WS2801
     num_leds: 32
+    rgb_order: RGB
     data_rate: 1MHz
     effects:
       - addressable_rainbow: