feat: extended set support with body.

Author: QuickSander

README.md

@@ -264,7 +264,7 @@ Following configuration is a real world example for a accessory that combines a
 | Key | Description |
 | --- | --- |
 | `url` | URL to set brightness status |
-| `body` | relevant, if the http_method is PUT/POST. this body is sent to the url. you can use a placeholder (`%s`) within the body. example: `{"bri": %s}`  |
+| `body` | relevant, if the http_method is PUT/POST. this body is sent to the url. you can use a placeholder (`%s`) within the body. example: `{"bri": %s}` |
 
 
 ### Color object