### Features

#### `decoding="async"` added to images

The attribute `decoding="async"` is automatically added to Markdown images.

*Example:*

```markdown
![](/image.jpg)
```

Is converted to:

```html
<img src="/image.jpg" decoding="async">
```

[Documentation →](/documentation/content/#decoding)

### Fix

- Fix default class in Markdown images
- Fix configuration error messages

### Docs

- Update `metatags` configuration

### Miscs

- Dependencies updated
- Code coverage enhanced
- Print a message if the EXIF extension is loaded
- `exif_read_data` error handler refactored
