Helper tool to convert Gregorian date to Vietnamese Lunar Date (default timezone is GMT+7)

## Installation

```bash
npm install viet-lunar-calendar
```

## Usage

```javascript
import CalendarCalculator from 'viet-lunar-calendar'

const calcal = new CalendarCalculator()
console.log(calcal.getLunarDate(new Date()))
```

## Maintaining

### Compile the code
```
npm run build
```

### Update version
```
npm version patch
```

### Publish
```
npm publish
```