🐛 [BUG] 官网很多示例点击跳转都是404

想要查询annotations的实例，但是点击之后跳转的都是404页面

> Please provide a link by forking these links [G2Plot](https://codesandbox.io/s/g2plot-issue-template-gzfdq?file=/index.ts) or GitHub repo, a minimal reproduction.

https://g2plot.antv.antgroup.com/zh/examples/component/annotation#line-annotation-with-text

Start from the linked annotations examples page and verify which example links return 404. Trace the affected example entry points in the repository and check the generated or deployed paths; done means the annotations examples open successfully instead of returning 404.

Written by the indexing model from the issue text.