Blake Erickson a89574ccb9 FIX: Inline error when converting html to markdown
Looks like some html elements like `aside` and `section` will throw an error
when checking if they are inline or not. The commit simply handles

```
Job exception: undefined method `inline?' for nil:NilClass
```

and adds a test for it.
2020-06-03 15:59:19 -06:00
..
2019-10-16 14:28:04 -04:00
2019-10-16 14:28:04 -04:00