I have a markdown file with some documentation. To make it format in a certain way, there are a few pieces of raw HTML in the file. This apparently causes Visual Studio to try to emulate Clippy and attempt to help me make my markdown files XML compliant

![enter image description here](https://i.stack.imgur.com/KojmY.png)

As lovely as it is for Visual Studio to tell me why my markdown file isn't valid XML, I really hate having squigly red lines underneath every single piece of text in the file. 

How do I get Visual Studio 2013 to stop assuming my markdown is XML/HTML?