Update src/cmap/connection_pool_events.ts

Co-authored-by: Neal Beeken <neal.beeken@mongodb.com>

src/cmap/connection_pool_events.ts

@@ -212,8 +212,7 @@ export class ConnectionCheckOutFailedEvent extends ConnectionPoolMonitoringEvent
  * The time it took to check out the connection.
  * More specifically, the time elapsed between
  * emitting a `ConnectionCheckOutStartedEvent`
- * and emitting this event as part of the same checking out.
- *
+ * and emitting this event as part of the same check out.
  */
  durationMS: number;