Tweak display of build status on readme

Author: DustinCampbell

README.md

@@ -1,7 +1,8 @@
 ## C# for Visual Studio Code (powered by OmniSharp)
 
-Master: [![Build Status](https://travis-ci.org/OmniSharp/omnisharp-vscode.svg?branch=master)](https://travis-ci.org/OmniSharp/omnisharp-vscode)
-Dev: [![Build Status](https://travis-ci.org/OmniSharp/omnisharp-vscode.svg?branch=dev)](https://travis-ci.org/OmniSharp/omnisharp-vscode)
+|Master|Dev|
+|:--:|:--:|
+|[![Master Build Status](https://travis-ci.org/OmniSharp/omnisharp-vscode.svg?branch=master)](https://travis-ci.org/OmniSharp/omnisharp-vscode)|[![Dev Build Status](https://travis-ci.org/OmniSharp/omnisharp-vscode.svg?branch=dev)](https://travis-ci.org/OmniSharp/omnisharp-vscode)|
 
 Don't install this extension unless you want to try an early version.