Update doc/api/globals.md

Author: Trott

doc/api/globals.md

@@ -95,7 +95,7 @@ ever trigger the `'abort'` event once. We recommended that code check
 that the `abortSignal.aborted` attribute is `false` before adding an `'abort'`
 event listener.
 
-Any event listeners attached to the `AbortSignal` *should* use the
+Any event listeners attached to the `AbortSignal` should use the
 `{ once: true }` option (or, if using the `EventEmitter` APIs to attach a
 listener, use the `once()` method) to ensure that the event listener is
 removed as soon as the `'abort'` event is handled. Failure to do so may