Broken tables which are wrapped with div

[thenamankumar]

We are using this package at Source Graph to render markdown files.

The markdown table is not converted into HTML if it is wrapped with div in the markdown text. Also reproducible in this file.

We are tracking it at Source Graph under this issue.

Works:

| Users        | Instance type |
| ------------ | ------------- |
| 10-25        | t2.xlarge     |
| 25-500       | t2.xlarge     |
| 500-2,000    | t2.xlarge     | 
| 2,000-4,000  | t2.xlarge     |
| 4,000-10,000 | t2.xlarge     | 
| 10,000+      | t2.2xlarge    |

Breaks:

<div class="table">

| Users        | Instance type |
| ------------ | ------------- |
| 10-25        | t2.xlarge     |
| 25-500       | t2.xlarge     |
| 500-2,000    | t2.xlarge     | 
| 2,000-4,000  | t2.xlarge     |
| 4,000-10,000 | t2.xlarge     | 
| 10,000+      | t2.2xlarge    |

</div>

[thenamankumar]

cc: @erzhtor