docs(bufferToggle): use non-deprecated syntax in example
MODIFY
src/internal/operators/bufferToggle.ts
src/internal/operators/bufferToggle.ts
@@ -26,13 +26,13 @@ import { OperatorFunction, SubscribableOrPromise } from '../types';
* Every other second, emit the click events from the next 500ms
*
* ```javascript
- * import { fromEvent, interval, empty } from 'rxjs';
+ * import { fromEvent, interval, EMPTY } from 'rxjs';
* import { bufferToggle } from 'rxjs/operators';
*
* const clicks = fromEvent(document, 'click');
* const openings = interval(1000);
* const buffered = clicks.pipe(bufferToggle(openings, i =>
- * i % 2 ? interval(500) : empty()
+ * i % 2 ? interval(500) : EMPTY
* ));
* buffered.subscribe(x => console.log(x));
* ```

docs(bufferToggle): use non-deprecated syntax in example (#4552)