More changes to reflect what the actual mutation will look like

src/content/docs/apis/nerdgraph/examples/async-queries-nrql-tutorial.mdx

@@ -71,7 +71,7 @@ Some important details about this query:
 
 ## Cancel an async query [#example-cancel-query]
 
-You can cancel an asynchronous query by using the `cancelAsyncQuery` mutation. This mutation takes the `queryId` of the
+You can cancel an asynchronous query by using the `cancelQuery` mutation. This mutation takes the `queryId` of the
 query you want to cancel. It will either return an `ACCEPTED` status, or `REJECTED` status with a reason for rejection.
 
 ```graphql