Create release npm task

The releases should be automated (using `gren` 😅) in order to:

- Create the docs
- Generate release notes
- Update `CHANGELOG.md`

This could be done as a node script `release` and triggered by the pre-publish.

首先检查现有的 npm 脚本和发布流程，然后查看 CHANGELOG.md 以及项目当前如何创建文档和发布说明。围绕 gren 及其 pre-publish trigger 定义 `release` Node 任务；完成的标准是这些步骤会自动运行，并在发布期间更新 changelog。

由索引模型根据 Issue 内容生成。