doc: Create README.md

Author: KSXGitHub

README.md

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+# Parallel Disk Usage (pdu)
+
+[![Test](https://github.com/KSXGitHub/parallel-disk-usage/workflows/Test/badge.svg)](https://github.com/KSXGitHub/parallel-disk-usage/actions?query=workflow%3ATest)
+[![Benchmark](https://github.com/KSXGitHub/parallel-disk-usage/actions/workflows/benchmark.yaml/badge.svg)](https://github.com/KSXGitHub/parallel-disk-usage/actions/workflows/benchmark.yaml)
+[![Clippy](https://github.com/KSXGitHub/parallel-disk-usage/actions/workflows/clippy.yaml/badge.svg)](https://github.com/KSXGitHub/parallel-disk-usage/actions/workflows/clippy.yaml)
+[![Code formatting](https://github.com/KSXGitHub/parallel-disk-usage/actions/workflows/fmt.yaml/badge.svg)](https://github.com/KSXGitHub/parallel-disk-usage/actions/workflows/fmt.yaml)
+[![Lint dependency graph](https://github.com/KSXGitHub/parallel-disk-usage/actions/workflows/cargo-deny.yaml/badge.svg)](https://github.com/KSXGitHub/parallel-disk-usage/actions/workflows/cargo-deny.yaml)
+[![Crates.io Version](https://img.shields.io/crates/v/parallel-disk-usage?logo=rust)](https://crates.io/crates/parallel-disk-usage)
+
+Summarize disk usage of the set of files, recursively for directories.
+
+## Description
+
+`pdu` is a CLI program that renders a graphical chart for disk usages of files and directories, it is intended to replace [`dust`](https://github.com/bootandy/dust) and [`dutree`](https://github.com/nachoparker/dutree).
+
+Both `dust` (v0.5.4) and `dutree` (v0.12.5) do not utilize the parallel computing capability of Rust to improve performance.
+
+## Installation
+
+### From GitHub
+
+Go to the [GitHub Release Page](https://github.com/KSXGitHub/parallel-disk-usage/releases) and download a binary.
+
+### From [crates.io](https://crates.io)
+
+**Prerequisites:**
+  * [`cargo`](https://github.com/rust-lang/cargo)
+
+```sh
+cargo install parallel-disk-usage
+```
+
+### From the [Arch User Repository](https://aur.archlinux.org)
+
+**Prerequisites:**
+  * An AUR helper, such as [`paru`](https://github.com/Morganamilo/paru)
+
+```sh
+paru -S parallel-disk-usage-bin
+```
+
+```sh
+paru -S parallel-disk-usage
+```
+
+## Distributions
+
+[![Packaging Status](https://repology.org/badge/vertical-allrepos/parallel-disk-usage.svg)](https://repology.org/project/parallel-disk-usage/versions)
+
+## Similar programs
+
+* **CLI:**
+  * `du`
+  * [`dust`](https://github.com/bootandy/dust)
+  * [`dutree`](https://github.com/nachoparker/dutree)
+* **TUI:**
+  * [`ncdu`](https://dev.yorhel.nl/ncdu)
+  * [`gdu`](https://github.com/dundee/gdu)
+  * [`godu`](https://github.com/viktomas/godu)
+* **GUI:**
+  * [GNOME's Disk Usage Analyzer, a.k.a. `baobab`](https://wiki.gnome.org/action/show/Apps/DiskUsageAnalyzer)
+  * Filelight
+
+## License
+
+[Apache 2.0](https://git.io/JGIAt) © [Hoàng Văn Khải](https://ksxgithub.github.io/).