Add the Codecov badge for master

diff --git a/.github/CONTRIBUTING.rst b/.github/CONTRIBUTING.rst
index d3a1b88d83fba52a498a5b29bb0b8a66bcd8dc6f..2d3f92afb0347340f982f0d529b59c7b8b8278f6 100644 (file)
--- a/.github/CONTRIBUTING.rst
+++ b/.github/CONTRIBUTING.rst
@@ -8,6 +8,9 @@ Build Status
 
   + .. image:: https://travis-ci.org/python/cpython.svg?branch=master
        :target: https://travis-ci.org/python/cpython
+  + .. image:: https://codecov.io/gh/python/cpython/branch/master/graph/badge.svg
+       :target: https://codecov.io/gh/python/cpython
+
   + `Stable buildbots <http://buildbot.python.org/3.x.stable/>`_
 
 - 3.6