docs about bugs and how to update

[Weidows]

https://github.com/rustfs/docs.rustfs.com.cn/blob/main/docs/upgrade-scale/index.md

The documentation about how to upgrade seems to be missing.

It would also be helpful to add descriptions of known bugs in older versions to the documentation.

For example, when I was choosing a version, I assumed that version 68 was a stable release, but I ran into a bug and spent quite a long time troubleshooting it. (rustfs/rustfs#816)