Update README.md

Author: Mesteery

node/README.md

@@ -54,7 +54,7 @@ deno standard library as it's a compatibility module.
 - [ ] v8
 - [ ] vm
 - [ ] wasi
-- [ ] worker_threads
+- [x] worker_threads
 - [ ] zlib
 
 * [x] node globals _partly_