[docs] Add chinese README

README.cn.md

@@ -0,0 +1,87 @@
+# Ncmdump.rs
+
+![](https://github.com/iqiziqi/ncmdump.rs/workflows/test/badge.svg)
+![](https://github.com/iqiziqi/ncmdump.rs/workflows/deploy/badge.svg)
+[![](https://img.shields.io/crates/v/ncmdump)](https://crates.io/crates/ncmdump)
+[![](https://img.shields.io/crates/d/ncmdump)](https://crates.io/crates/ncmdump)
+
+[[English](./README.md)] [[中文](./README.cn)]
+
+## 致谢
+
+### 原始仓库
+
+* [anonymous5l/ncmdump](https://github.com/anonymous5l/ncmdump)
+* [MegrezZhu/qmcdump](https://github.com/MegrezZhu/qmcdump)
+
+## 使用方法（二进制文件使用）
+
+### 安装
+
+通过 Cargo 工具进行安装。
+
+```shell
+cargo install ncmdump
+```
+
+### 简单使用
+
+```shell
+ncmdump [FILES]...
+```
+
+### 更多选项
+
+```text
+Usage: ncmdump [OPTIONS] [FILES]...
+
+Arguments:
+  [FILES]...  Specified the files to convert
+
+Options:
+  -o, --output <OUTPUT>  Specified the output directory. Default it's the same directory with input file
+  -v, --verbose          Verbosely list files processing
+  -h, --help             Print help
+  -V, --version          Print version
+```
+
+## 使用方法（作为库使用）
+
+### 安装
+
+在你的 `Cargo.toml` 文件中添加依赖：
+
+```toml
+ncmdump = "0.7.2"
+```
+
+或者，如果安装了 [cargo-edit](https://github.com/killercup/cargo-edit)，你可以使用命令：
+
+```shell
+cargo add ncmdump
+```
+
+### 简单用法
+
+```rust
+use std::fs::File;
+use std::path::Path;
+
+use anyhow::Result;
+use ncmdump::Ncmdump;
+
+fn main() -> Result<()> {
+    use std::io::Write;
+    let file = File::open("res/test.ncm")?;
+    let mut ncm = Ncmdump::from_reader(file)?;
+    let music = ncm.get_data()?;
+    let mut target = File::options()
+        .create(true)
+        .write(true)
+        .open("res/test.flac")?;
+    target.write_all(&music)?;
+    Ok(())
+}
+```
+
+更多的用法, 可以查看[文档](https://docs.rs/ncmdump).

README.md

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 [![](https://img.shields.io/crates/v/ncmdump)](https://crates.io/crates/ncmdump)
 [![](https://img.shields.io/crates/d/ncmdump)](https://crates.io/crates/ncmdump)
 
+[[English](./README.md)] [[中文](./README.cn)]
+
 ## Credit
 
 ### Origin