Feat: Auto generate JH en doc

What does this MR do and why?

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相关issue: #1809 (comment 1568446)

相关上下文: #2239 (closed)

我们实现了一个rake任务，该rake任务用来自动化扫描upstream的doc目录，并根据 jh/config/doc_scan_rules.yml的规则来进行替换等操作；最终将替换后的文档生成在 jh/doc/en/ 目录下。

/cc @prajnamas

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