Change exhaust to exhaustAll (#6575)

Author: FraiZj

docs_app/content/guide/operators.md

@@ -93,7 +93,7 @@ The [`concatAll()`](/api/operators/concatAll) operator subscribes to each "inner
 
 - [`mergeAll()`](/api/operators/mergeAll) — subscribes to each inner Observable as it arrives, then emits each value as it arrives
 - [`switchAll()`](/api/operators/switchAll) — subscribes to the first inner Observable when it arrives, and emits each value as it arrives, but when the next inner Observable arrives, unsubscribes to the previous one, and subscribes to the new one.
-- [`exhaust()`](/api/operators/exhaust) — subscribes to the first inner Observable when it arrives, and emits each value as it arrives, discarding all newly arriving inner Observables until that first one completes, then waits for the next inner Observable.
+- [`exhaustAll()`](/api/operators/exhaustAll) — subscribes to the first inner Observable when it arrives, and emits each value as it arrives, discarding all newly arriving inner Observables until that first one completes, then waits for the next inner Observable.
 
 Just as many array libraries combine [`map()`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/map) and [`flat()`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/flat) (or `flatten()`) into a single [`flatMap()`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/flatMap), there are mapping equivalents of all the RxJS flattening operators [`concatMap()`](/api/operators/concatMap), [`mergeMap()`](/api/operators/mergeMap), [`switchMap()`](/api/operators/switchMap), and [`exhaustMap()`](/api/operators/exhaustMap).