add example to README

17 jobs for master in 2 minutes and 52 seconds (queued for 1 second)
Status Job ID Name Coverage
  Build
passed #44949
Linux
build-2.7-linux

00:00:58

canceled #44950
Apple
build-2.7-macos

passed #44947
Linux
build-3.5-linux

00:01:31

canceled #44948
Apple
build-3.5-macos

passed #44946
VS2017
build-3.6-VS2017

00:01:20

 
  Test
canceled #44954
Linux
test-2.7-linux

canceled #44955
Apple
test-2.7-macos

canceled #44952
Linux
test-3.5-linux

canceled #44953
Apple
test-3.5-macos

canceled #44951
VS2017
test-3.6-VS2017

 
  Deploy
canceled #44959
Linux
deploy-2.7-linux

canceled #44960
Apple
deploy-2.7-macos

canceled #44957
Linux
deploy-3.5-linux

canceled #44958
Apple
deploy-3.5-macos

canceled #44956
VS2017
deploy-3.6-VS2017

canceled #44962
Linux
deploy-documentation

canceled #44961
Linux
deploy-sdist