[Chore] Release doc improvement (#17612)

Author: SbloodyS

docs/docs/en/contribute/release.md

@@ -204,6 +204,7 @@ We need to update some documentation before the Maven release. For example, to r
   - `docs/configs/docsdev.js`: change `/dev/` to `/x.y.z/`, **DO NOT** change this filename, is will be auto change by website tools.
 
 > Note: `VERSION` is a place hold string, is same as the version we set in `VERSION=<THE-VERSION-YOU-RELEASE>`.
+> Please merge the dev branch of the main warehouse before merging the master branch of the website. When the modified pull requests are merged, it will take effect.
 
 ### Modify Correct year in NOTICE file
 

docs/docs/zh/contribute/release.md

@@ -497,7 +497,7 @@ svn delete -m "remove old release" https://dist.apache.org/repos/dist/release/do
 
 ### 更新文档
 
-官网应该在您发送通知邮件之前完成更新，本节将告诉您如何更改网站。假设发版的版本是 `<VERSION>`，需要进行以下更新（注意，当修改 pull requests 被 merge 后就会生效）:
+官网应该在您发送通知邮件之前完成更新，本节将告诉您如何更改网站。假设发版的版本是 `<VERSION>`，需要进行以下更新（注意，请先合并 主仓库的 dev 分支后再合并 website 的 master 分支，当修改 pull requests 被 merge 后就会生效）:
 
 - **apache/dolphinscheduler-website** 仓库：
   - `config/download.json`: 增加 `<VERSION>` 版本发布包的下载