add pool and replace and with or

src/main/docs/guide/httpServer/serverConfiguration/threadPools/atBlocking.adoc

@@ -2,7 +2,7 @@ You can use the ann:core.annotation.Blocking[] annotation to mark methods as blo
 
 If you set `micronaut.server.thread-selection` to `AUTO`, The Micronaut Framework offloads the execution of methods annotated with `@Blocking` to the IO thread pool (See: api:io.micronaut.scheduling.TaskExecutors[]).
 
-NOTE: `@Blocking` only works if you are using `AUTO` thread selection. Micronaut Framework defaults to `MANUAL` thread selection since Micronaut 2.0. We recommend the usage of ann:scheduling.annotation.ExecuteOn[] annotation to execute the blocking operations on a different thread. `@ExecutesOn` works for both `MANUAL` or `AUTO` thread selection.
+NOTE: `@Blocking` only works if you are using `AUTO` thread selection. Micronaut Framework defaults to `MANUAL` thread selection since Micronaut 2.0. We recommend the usage of ann:scheduling.annotation.ExecuteOn[] annotation to execute the blocking operations on a different thread pool. `@ExecutesOn` works for both `MANUAL` and `AUTO` thread selection.
 
 There are some places where the Micronaut framework uses ann:core.annotation.Blocking[] already.