README.md in textbringer-0.1.4 vs README.md in textbringer-0.1.5

- old
+ new

@@ -1,10 +1,11 @@
 # Textbringer
 
 [![Gem Version](https://badge.fury.io/rb/textbringer.svg)](https://badge.fury.io/rb/textbringer)
 [![Build Status](https://travis-ci.org/shugo/textbringer.svg?branch=master)](https://travis-ci.org/shugo/textbringer)
 [![Build status](https://ci.appveyor.com/api/projects/status/n20vtpfgcgii5jtc?svg=true)](https://ci.appveyor.com/project/shugo31737/textbringer)
+[![codecov](https://codecov.io/gh/shugo/textbringer/branch/master/graph/badge.svg)](https://codecov.io/gh/shugo/textbringer)
 
 Textbringer is a member of a demon race that takes on the form of a text
 editor.
 
 ## Demo
@@ -63,6 +64,5 @@
 
 
 ## License
 
 The gem is available as open source under the terms of the [MIT License](http://opensource.org/licenses/MIT).
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