I'm having problems with bel. I try to use bel to render some markdown content with the help of marked library. With this code

```js
const html = require('yo-yo')
const marked = require('marked')

const post = require('./posts/post.md')
console.log(marked(post))
document.body.appendChild(html(marked(post)))
```

And this markdown content

```md
# hello world
```
I'm using [stringify](https://github.com/JohnPostlethwait/stringify) to require the `.md` file content. When I console log the `marked(post)` call, I get

```text

hello world

That's pretty valid html to me, but bel complains with this error.

>Uncaught DOMException: Failed to execute 'setAttribute' on 'Element': 'hello-world"' is not a valid attribute name.
> at belCreateElement (http://playground-yerkopalma.c9users.io:8080/bundle.js:1447:14)
> at http://playground-yerkopalma.c9users.io:8080/bundle.js:1807:12
> at http://playground-yerkopalma.c9users.io:8080/bundle.js:1569:45
> at Object.1../posts/post.md (http://playground-yerkopalma.c9users.io:8080/bundle.js:7:27)
> at s (http://playground-yerkopalma.c9users.io:8080/bundle.js:1:254)
> at e (http://playground-yerkopalma.c9users.io:8080/bundle.js:1:425)
> at http://playground-yerkopalma.c9users.io:8080/bundle.js:1:443

And the problem is that when the belCreateElement function is called, it is called with wrong attributes


Now why is that happening? I thought about an hyperx error, but tried it with hyperscript and it render correctly. Not sure what could it be, also looked at the [hyperscript-attribute-to-property](https://github.com/feross/hyperscript-attribute-to-property) library inside hyperx, but again why would it work with hyperscript, but not with bel?

Any help would be appreciated.