Replace RawGit with jsDelivr (#17)

Author: jsdelivrbot

examples/.storybook/manager-head.html

@@ -1,4 +1,4 @@
 <script>
   document.title = "One React"
 </script>
-<link rel="icon" type="image/png" href="https://cdn.rawgit.com/one-react/assets/2a4f10b4/logo.png">
+<link rel="icon" type="image/png" href="https://cdn.jsdelivr.net/gh/one-react/assets@2a4f10b4/logo.png">

readme.md

@@ -1,6 +1,6 @@
 # One React Component: checkbox
 
-<p align="center"><img width="150" src="https://cdn.rawgit.com/one-react/assets/master/logo%402x.png" alt="logo"></p>
+<p align="center"><img width="150" src="https://cdn.jsdelivr.net/gh/one-react/assets/logo%402x.png" alt="logo"></p>
 
 [![TravisCI Build](https://img.shields.io/travis/one-react/checkbox.svg)](https://travis-ci.org/one-react/checkbox)
 [![CircieCI Build](https://img.shields.io/circleci/project/github/one-react/checkbox.svg)](https://circleci.com/gh/one-react/checkbox)