# README Template
> Comprehensive README.md template with badges, install instructions, usage, API docs, and contributing guide
> 배지, 설치 가이드, 사용법, API 문서, 기여 가이드가 포함된 종합 README 템플릿

**Category**: Project Setup | **Tags**: readme, documentation, open-source, markdown, badges | **Difficulty**: Beginner

## Preview
```
# Project Name
[badges: build, coverage, npm, license]

Description paragraph

## Features | Install | Usage | API | Contributing
```

## Quick Start
```bash
# 1. Copy the template below into your project's README.md
# 2. Replace all [PLACEHOLDER] values with your project info
# 3. Remove sections that don't apply (e.g., API if it's a CLI tool)
```

## Full Code

````markdown
# [Project Name]

[![CI](https://github.com/[OWNER]/[REPO]/actions/workflows/ci.yml/badge.svg)](https://github.com/[OWNER]/[REPO]/actions)
[![Coverage](https://codecov.io/gh/[OWNER]/[REPO]/branch/main/graph/badge.svg)](https://codecov.io/gh/[OWNER]/[REPO])
[![npm](https://img.shields.io/npm/v/[PACKAGE_NAME])](https://www.npmjs.com/package/[PACKAGE_NAME])
[![License: MIT](https://img.shields.io/badge/License-MIT-blue.svg)](LICENSE)

> [One-line description of what this project does and who it's for.]

[Project Name] is a [type of tool/library/framework] that helps you [primary benefit]. Built with [key technologies], it provides [key differentiator].

## Features

- **Feature 1** - Brief description of the feature
- **Feature 2** - Brief description of the feature
- **Feature 3** - Brief description of the feature
- **Feature 4** - Brief description of the feature

## Installation

### Prerequisites

- Node.js >= 20 (or Python >= 3.11)
- npm or yarn or pnpm

### Install

```bash
# npm
npm install [package-name]

# yarn
yarn add [package-name]

# pnpm
pnpm add [package-name]
```

### From source

```bash
git clone https://github.com/[OWNER]/[REPO].git
cd [REPO]
npm install
npm run build
```

## Quick Start

```javascript
import { Client } from '[package-name]';

const client = new Client({ apiKey: process.env.API_KEY });

// Create a resource
const result = await client.create({
  name: 'My Resource',
  type: 'example',
});

console.log(result);
// { id: 'res_abc123', name: 'My Resource', created_at: '2026-03-28T...' }
```

## Usage

### Basic Example

```javascript
// Initialize
const app = new App({ debug: true });

// Add middleware
app.use(logger());
app.use(cors());

// Define routes
app.get('/health', () => ({ status: 'ok' }));
app.post('/users', async (req) => {
  return await createUser(req.body);
});

// Start
app.listen(3000);
```

### Configuration

| Option | Type | Default | Description |
|--------|------|---------|-------------|
| `apiKey` | `string` | - | Your API key (required) |
| `baseUrl` | `string` | `https://api.example.com` | API base URL |
| `timeout` | `number` | `30000` | Request timeout in ms |
| `retries` | `number` | `3` | Number of retry attempts |
| `debug` | `boolean` | `false` | Enable debug logging |

### Environment Variables

```bash
# .env
API_KEY=your_api_key_here
DATABASE_URL=postgresql://user:pass@localhost:5432/db
LOG_LEVEL=info
```

## API Reference

### `client.create(options)`

Creates a new resource.

**Parameters:**

| Name | Type | Required | Description |
|------|------|----------|-------------|
| `name` | `string` | Yes | Resource name |
| `type` | `string` | Yes | Resource type |
| `metadata` | `object` | No | Additional key-value pairs |

**Returns:** `Promise<Resource>`

**Example:**

```javascript
const resource = await client.create({
  name: 'Example',
  type: 'demo',
  metadata: { env: 'production' }
});
```

### `client.list(filters?)`

Lists resources with optional filtering.

**Parameters:**

| Name | Type | Required | Description |
|------|------|----------|-------------|
| `limit` | `number` | No | Max results (default: 20) |
| `cursor` | `string` | No | Pagination cursor |
| `type` | `string` | No | Filter by type |

**Returns:** `Promise<{ data: Resource[], pagination: Pagination }>`

## Development

```bash
# Install dependencies
npm install

# Run in development mode
npm run dev

# Run tests
npm test

# Run tests with coverage
npm run test:coverage

# Lint
npm run lint

# Build for production
npm run build
```

### Project Structure

```
src/
├── index.ts          # Main entry point
├── client.ts         # API client
├── types.ts          # TypeScript types
├── utils/            # Utility functions
│   ├── validator.ts
│   └── logger.ts
└── errors.ts         # Custom error classes

tests/
├── client.test.ts
├── utils.test.ts
└── fixtures/         # Test fixtures
```

## Contributing

Contributions are welcome! Please read our [Contributing Guide](CONTRIBUTING.md) before submitting a PR.

1. Fork the repository
2. Create your feature branch (`git checkout -b feature/amazing-feature`)
3. Commit your changes (`git commit -m 'feat: add amazing feature'`)
4. Push to the branch (`git push origin feature/amazing-feature`)
5. Open a Pull Request

### Commit Convention

This project uses [Conventional Commits](https://www.conventionalcommits.org/):

- `feat:` New feature
- `fix:` Bug fix
- `docs:` Documentation
- `test:` Tests
- `chore:` Maintenance

## Changelog

See [CHANGELOG.md](CHANGELOG.md) for release history.

## License

This project is licensed under the MIT License - see the [LICENSE](LICENSE) file for details.

## Acknowledgments

- [Library/tool that helped](https://example.com) - Brief credit
- Inspired by [project](https://example.com)
````

## Customization Guide
- **Badges**: Replace `[OWNER]/[REPO]` with your GitHub org/repo; add PyPI, Docker Hub, or custom badges
- **Install section**: Adjust for your package manager (pip, cargo, go get)
- **API Reference**: Expand with all public methods; use TypeDoc/Sphinx for auto-generation
- **Project structure**: Update to match your actual directory layout
- **License**: Change MIT to Apache-2.0, GPL, or your chosen license
- **Remove sections**: If not applicable (e.g., no API for a CLI tool), remove those sections

## 2026 Trend Notes
- README-driven development: write the README first to clarify the API before coding
- Status badges at the top give instant project health visibility
- Quick Start section with copy-paste code is essential for adoption
- Configuration table format is easier to scan than prose descriptions
- Contributing section with commit convention ensures consistent history