readme-write

自动生成或重构项目 README，补全安装与使用说明。

自动生成或重构项目的 README，补全安装、配置、使用示例和快速上手步骤，把信息按新来开发者的阅读顺序组织好。新项目初始化、准备开源或想提升 README 可读性时用。特点是面向初次接触代码库的开发者，重点放在快速上手、常见问题和示例命令上。

A README is the first thing a developer reads about a project, and usually the
thing that decides whether they read anything else. Its audience is developers
meeting the project for the first time — people looking to understand and set
up a new tool or library, it is less for people who already know the codebase. 
Everything below follows from writing for that reader.

## The reader's order

The README is orderd to reveal information the devopers need progressviely: *what is
this?* → *how do I use it?* → *where are the docs and examples?* → *how do I
contribute?* Each question only matters if the answer to the previous one kept
the reader interested, so the document should answer them in tha