Fix badges in README

Author: kitsonk

README.md

@@ -1,8 +1,8 @@
 # Dojo 2 core
 
 [![Build Status](https://travis-ci.org/dojo/core.svg?branch=master)](https://travis-ci.org/dojo/core)
-[![codecov.io](http://codecov.io/github/dojo/core/coverage.svg?branch=master)](http://codecov.io/github/dojo/core?branch=master)
-[![npm version](https://badge.fury.io/js/dojo-core.svg)](http://badge.fury.io/js/dojo-core)
+[![codecov.io](https://codecov.io/github/dojo/core/coverage.svg?branch=master)](https://codecov.io/github/dojo/core?branch=master)
+[![npm version](https://badge.fury.io/js/dojo-core.svg)](https://badge.fury.io/js/dojo-core)
 
 This package provides a set of language helpers, utility functions, and classes for writing TypeScript applications.
 It includes APIs for feature detection, asynchronous and streaming operations, basic event handling,