Found New Bug Case

[geyang]

Hi @aesterline ,

Thanks for this great plugin! I think I found a bug case.

The markdown is the following:

[![Join the chat at https://gitter.im/escherpad/luna](https://img.shields.io/badge/GITTER-join%20chat-green.svg?style=flat-square)](https://gitter.im/escherpad/luna?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)

The correct result should be:

<p><a href="https://gitter.im/escherpad/luna?utm_source=badge&amp;utm_medium=badge&amp;utm_campaign=pr-badge&amp;utm_content=badge"><img src="https://img.shields.io/badge/GITTER-join%20chat-green.svg?style=flat-square" alt="Join the chat at https://gitter.im/escherpad/luna"></a></p>

but it looks like flowdock's result is a little strange:

<p>[![Join the chat at <a href="https://gitter.im/escherpad/luna%5D(https://img.shields.io/badge/GITTER-join%20chat-green.svg?style=flat-square)%5D(https://gitter.im/escherpad/luna?utm_source=badge&amp;utm_medium=badge&amp;utm_campaign=pr-badge&amp;utm_content=badge)">https://gitter.im/escherpad/luna](https://img.shields.io/badge/GITTER-join chat-green.svg?style=flat-square)](https://gitter.im/escherpad/luna?utm_source=badge&amp;utm_medium=badge&amp;utm_campaign=pr-badge&amp;utm_content=badge)</a></p>