docs(autoRestart): explain when restart counter resets

Clarify that the restart counter resets once a connector runs longer
than the next backoff interval.

Author: rodrigo-molina

documentation/api/io.strimzi.api.kafka.model.connector.AutoRestart.adoc

@@ -4,6 +4,8 @@ When enabled, a back-off algorithm applies the automatic restart to each failed
 An incremental back-off interval is calculated using the formula `n * n + n` where `n` represents the number of previous restarts.
 This interval is capped at a maximum of 60 minutes.
 Consequently, a restart occurs immediately, followed by restarts after 2, 6, 12, 20, 30, 42, 56 minutes, and then at 60-minute intervals.
+The restart counter is automatically reset once the connector has been running continuously for longer than the next backoff interval. 
+For example, if the connector has restarted 4 times, it must run without errors for 20 minutes before the restart count resets to 0.
 By default, Strimzi initiates restarts of the connector and its tasks indefinitely.
 However, you can use the `maxRestarts` property to set a maximum on the number of restarts.
 If `maxRestarts` is configured and the connector still fails even after the final restart attempt, you must then restart the connector manually.