官方教程打开页面404

[KaelInvoker]

• [ ] I have searched the issues of this repository and believe that this is not a duplicate.

Reproduction link

https://f2.antv.antgroup.com/examples/gallery

Steps to reproduce

打开官方示例，及相关教程报404

Environment	Info
g2	4.2.8
System	-
Browser	-

[pearmini]

这是 https://github.com/antvis/f2 的网站，可以去这里提 issue：https://github.com/antvis/F2/issues