[Fix] fix deadlink in website

[davidzollo]

There're some deadlinks in Apache SeaTunnel website https://seatunnel.apache.org/

Please help fix it, you can use deadlink tool like https://www.brokenlinkcheck.com/broken-links.php, you can just fix the latest version and dev:
https://github.com/apache/seatunnel/tree/dev/docs
https://github.com/apache/seatunnel-website

[HudsonShi]

please assign to me

[davidzollo]

You can pull the project https://github.com/apache/seatunnel.git using IntelliJ IDEA or other IDE tool, and then search for outdated links in the docs directory, for example:

Like this, check the suffix “category/transform-v2”

Image

Then, The link needs to be updated from "https://seatunnel.apache.org/docs/category/transform-v2" to "https://seatunnel.apache.org/docs/transform-v2".