Here's the full README.md for your CLI tool, Cargo Auto-Run:

# Cargo Auto-Run

Cargo Auto-Run is a versatile CLI tool that watches for file changes in a specified directory and runs a specified command if changes are detected. This tool is particularly useful for automatically running commands like `cargo run` whenever you make changes to your code, but it can be used with any command you specify.

## Features

- Watches for file changes recursively in the specified directory.
- Runs a specified command if any changes are detected.
- Can be used with any command, not just `cargo run`.

## Installation

To install Cargo Auto-Run, use the following command:

```sh
cargo install cargo-auto-run
```

## Usage

To use Cargo Auto-Run, navigate to the directory you want to watch and run the following command:

```sh
cargo-auto-run --command "<command>"
```

### Arguments

- `--command <command>`: The command to run on file changes. This should be the full command you want to execute, e.g., `cargo run`, `make build`, `npm start`, etc.

### Example

To watch the current directory for changes and run `cargo run` if any changes are detected, use:

```sh
cargo-auto-run --command "cargo run"
```

You can also use it with any other command. For example, to watch for changes and run `npm start`, use:

```sh
cargo-auto-run --command "npm start"
```