fix: add link to kafka docs, fix spelling

Author: chillleader

docs/components/connectors/out-of-the-box-connectors/kafka.md

@@ -540,7 +540,7 @@ If any of the field is not populated, you must configure your security method fo
   ```
 
 :::caution
-The `group.id` value above is auto-generated when no explicit **Consumer Group ID** is configured in the connector. This generated ID is derived from the connector's internal deduplication key, which may change across connector upgrades (for example, when upgrading from 8.8 to 8.9). A changed group ID causes Kafka to treat the connector as a new consumer group, losing committed offsets and potentially replaying messages. It is strongly recommended to always set an explicit Consumer Group ID.
+The `group.id` value above is auto-generated when no explicit **Consumer Group ID** is configured in the connector. This generated ID is derived from the connector's internal deduplication key, which may change across connector upgrades (for example, when upgrading from 8.8 to 8.9). A changed group ID causes Kafka to treat the connector as a new consumer group, losing committed offsets and potentially replaying messages. It is strongly recommended to always set an explicit Consumer Group ID. You can [look up existing consumer groups](https://docs.confluent.io/kafka/operations-tools/manage-consumer-groups.html#list-groups-and-view-offsets) to find the current group ID in use.
 :::
 
 ### What is the precedence of client properties loading?

docs/reference/announcements-release-notes/890/890-announcements.md

@@ -549,7 +549,7 @@ For more information on optimizing connector performance with virtual threads, s
 </div>
 <div className="release-announcement-content">
 
-#### Kafka Consumer connector: auto-generated consumer group ID format changed
+#### Kafka consumer connector: auto-generated consumer group ID format changed
 
 When upgrading from Camunda 8.8 to 8.9, the auto-generated Kafka consumer group ID changes format. This is a side-effect of a runtime improvement that enables cross-version connector deduplication.
 
@@ -558,7 +558,7 @@ When upgrading from Camunda 8.8 to 8.9, the auto-generated Kafka consumer group
 
 Because Kafka treats a changed group ID as a brand-new consumer group, connectors using an auto-generated group ID after upgrading will lose their committed offsets and may reprocess messages.
 
-**Action required:** Before upgrading to 8.9, set an explicit **Consumer Group ID** in each Kafka Consumer connector configuration to preserve consumer group identity. See the [Kafka connector documentation](/components/connectors/out-of-the-box-connectors/kafka.md?kafka=inbound) for details.
+**Action required:** Before upgrading to 8.9, set an explicit **Consumer Group ID** in each Kafka consumer connector configuration to preserve consumer group identity. You can [look up existing consumer groups](https://docs.confluent.io/kafka/operations-tools/manage-consumer-groups.html#list-groups-and-view-offsets) to find the current group ID in use. See the [Kafka connector documentation](/components/connectors/out-of-the-box-connectors/kafka.md?kafka=inbound) for details.
 
 </div>
 </div>