docs: polish the preparation of upgrade (#811)

Author: zxkane

docs/en/upgrade.md

@@ -2,8 +2,8 @@
 
 ## Planning and Preparation
 
-1. **Data Processing interval**: The pipeline upgrade will take about 20 minutes; ensure no data processing job is running while upgrading the existing pipeline. You can update the existing pipeline to increase the interval and view whether there are running jobs of the EMR Serverless application in the console.
-2. **Backup modified QuickSight Analysis and Dashboard**: The solution upgrade might update the out-of-box analysis and dashboard. If you changed it, please follow [this documentation][quicksight-assets-export] to back them up.
+1. **Backup of Modified QuickSight Analysis and Dashboard**: The solution upgrade may involve modifying the out-of-the-box analysis and dashboard. In this case, you can back them up following [this documentation][quicksight-assets-export].
+2. **Data Processing Interval** (only applied to upgrade from v1.0.x): The pipeline upgrade will take about 20 minutes. Make sure no data processing job is running while upgrading the existing pipeline. You can update the existing pipeline to increase the interval and view whether there are running jobs of the EMR Serverless application in the console.
 
 ## Upgrade Process
 

docs/zh/upgrade.md

@@ -2,8 +2,8 @@
 
 ## 规划和准备
 
-1. **数据处理间隔**：管道升级大约需要20分钟； 确保升级现有管道时没有数据处理作业正在运行。 您可以更新现有管道，增加间隔时间，并在控制台查看EMR Serverless应用是否有无正在运行的作业。
-2. **备份修改后的 QuickSight 分析和仪表板**：解决方案升级可能会更新方案提供的分析和仪表板。 如果您更改了它，请按照[本文档][quicksight-assets-export]进行备份。
+1. **备份修改后的 QuickSight 分析和仪表板**：解决方案升级可能会更新方案提供的分析和仪表板。 如果您更改了它，请按照[本文档][quicksight-assets-export]进行备份。
+2. **数据处理间隔**（仅适用于从 1.0.x 版本升级的情况）：管道升级大约需要20分钟； 确保升级现有管道时没有数据处理作业正在运行。 您可以更新现有管道，增加间隔时间，并在控制台查看EMR Serverless应用是否有无正在运行的作业。
 
 ## 升级过程
 
@@ -106,4 +106,4 @@
 [cloudfront-s3-oidc-cn-template]: https://{{ aws_cn_bucket }}.s3.cn-north-1.amazonaws.com.cn/{{ aws_cn_prefix }}/{{ aws_cn_version }}/cloudfront-s3-control-plane-stack-cn.template.json
 [intranet-template]: https://{{ aws_bucket }}.s3.amazonaws.com/{{ aws_prefix }}/{{ aws_version }}/private-exist-vpc-control-plane-stack.template.json
 [intranet-cn-template]: https://{{ aws_cn_bucket }}.s3.cn-north-1.amazonaws.com.cn/{{ aws_cn_prefix }}/{{ aws_cn_version }}/private-exist-vpc-control-plane-stack.template.json
-[troubleshooting]: ./troubleshooting.md
+[troubleshooting]: ./troubleshooting.md