Link CI status correctly [ci skip]

README.md

@@ -7,7 +7,7 @@
   <img src="https://user-images.githubusercontent.com/31465/34456332-51e41eb0-ed9c-11e7-9fa9-20e7fa946494.jpg" alt="Outline" width="800" />
 </p>
 <p align="center">
-  <img src="https://circleci.com/gh/outline/outline.svg?style=shield&amp;circle-token=c0c4c2f39990e277385d5c1ae96169c409eb887a" alt="" data-canonical-src="" style="max-width:100%;">
+  <a href="https://circleci.com/gh/outline/outline" rel="nofollow"><img src="https://circleci.com/gh/outline/outline.svg?style=shield&amp;circle-token=c0c4c2f39990e277385d5c1ae96169c409eb887a"></a>
   <a href="https://spectrum.chat/outline" rel="nofollow"><img src="https://withspectrum.github.io/badge/badge.svg" alt="Join the community on Spectrum"/></a>
   <a href="https://github.com/prettier/prettier"><img src="https://img.shields.io/badge/code_style-prettier-ff69b4.svg?style=flat"></a>
   <a href="https://github.com/styled-components/styled-components"><img src="https://img.shields.io/badge/style-%F0%9F%92%85%20styled--components-orange.svg"></a>