Update README.md

Author: meili-bot

README.md

@@ -127,7 +127,7 @@ fn main() { block_on(async move {
 })}
 ```
 
-With the `uid`, you can check the status (`enqueued`, `processing`, `succeeded` or `failed`) of your documents addition using the [task](https://www.meilisearch.com/docs/reference/api/tasks#get-task).
+With the `uid`, you can check the status (`enqueued`, `canceled`, `processing`, `succeeded` or `failed`) of your documents addition using the [task](https://www.meilisearch.com/docs/reference/api/tasks#get-task).
 
 #### Basic Search <!-- omit in TOC -->