message: Update documentation/error-handling.md
diff: @@ -83,7 +83,7 @@ self.onerror = (error) => {
  };
  ```
  -By default, Bugsnag has already sent error for `unhandledrejection`. You only need to listen to `onerror`.
  +By default, Bugsnag will listen for `unhandledrejection`. You only need to manually listen to `onerror`.
  ### Sentry
  