dm: it's difficult to find the precheck page

[buchuitoudegou]

Change Request

This repository is ONLY used to solve problems related to DOCS-CN. For other issues (TiDB, TiKV, etc), please move to other repositories.

Please answer the following questions before submitting your issue. Thanks!

1. Describe what you find is inappropriate or missing in the existing docs.

https://docs.pingcap.com/zh/tidb/stable/task-configuration-file-full

In the full configuration file guide, I'm recommended to take a look at the precheck page to see which checking items I can skip checking.

ignore-checking-items: []       # 忽略检查项。可用值请参考 precheck 说明页面。

but it occurred to me that I find it hard to access that page after carefully looking through the menu or searching the keyword (precheck).

https://docs.pingcap.com/zh/tidb/stable/dm-precheck

2. Describe your suggestion or addition.

Would you leave a link there or put it under the configuration file so that I or other users can conveniently find that page?

3. Provide some reference materials (documents, websites, etc) if you could.