Hey,

I'm trying to extract dependencies from a svelte-style .html file.
It seems like precinct is trying to parse it like JSX:

```
❯ env DEBUG=precinct npx precinct svelte/HelloWorld.html
precinct options given: { es6: {} } +0ms
precinct could not parse content: Adjacent JSX elements must be wrapped in an enclosing tag. Did you want a JSX fragment <>...? (7:0) +8ms
[]
```

This is the file content:

```html

.container {
text-align: center;
margin-top: 2rem;

font-family: sans-serif;
}

import EditingMessage from './EditingMessage.html';

export default {
components: { EditingMessage }
}

```

I think [vue single file components](https://vuejs.org/v2/guide/single-file-components.html) look quite similarly.

I may have some time later this week to look into this myself, just wanted to document this somewhere.