tidb-cloud: add Google Cloud for the Private service connect tab (#21271)

Author: qiancai

tidb-cloud/changefeed-overview.md

@@ -93,7 +93,7 @@ To learn the billing for changefeeds in TiDB Cloud, see [Changefeed billing](/ti
 
 ## Changefeed states
 
-The state of a replication task represents the running state of the replication task. During the running process, replication tasks might fail with errors, be manually paused, resumed, or reach the specified `TargetTs`. These behaviors can lead to changes of the replication task state.
+The state of a replication task represents the running state of the replication task. During the running process, replication tasks might fail with errors, or be manually paused or resumed. These behaviors can lead to changes of the replication task state.
 
 The states are described as follows:
 

tidb-cloud/changefeed-sink-to-apache-kafka.md

@@ -157,7 +157,7 @@ The steps vary depending on the connectivity method you select.
 13. Return to the [TiDB Cloud console](https://tidbcloud.com) to confirm that you have accepted the connection request. TiDB Cloud will test the connection and proceed to the next page if the test succeeds.
 
 </div>
-<div label="Private Service Connect">
+<div label="Private Service Connect (Google Cloud)">
 
 1. In **Connectivity Method**, select **Private Service Connect**.    
 2. Ensure that you fill in the same unique ID in **Kafka Advertised Listener Pattern** when you [Set Up Self-Hosted Kafka Private Service Connect in Google Cloud](/tidb-cloud/setup-self-hosted-kafka-private-service-connect.md) in the **Network** section.