Merge pull request #4520 from psibi/cleanup-azure

Remove azure stale file and put azure badge

README.md

@@ -1,7 +1,6 @@
 ## The Haskell Tool Stack
 
-[![Build Status](https://travis-ci.org/commercialhaskell/stack.svg?branch=master)](https://travis-ci.org/commercialhaskell/stack)
-[![Windows build status](https://ci.appveyor.com/api/projects/status/c1c7uvmw6x1dupcl?svg=true)](https://ci.appveyor.com/project/snoyberg/stack)
+[![Build Status](https://dev.azure.com/commercialhaskell/stack/_apis/build/status/commercialhaskell.stack?branchName=master)](https://dev.azure.com/commercialhaskell/stack/_build/latest?definitionId=1?branchName=master)
 [![Release](https://img.shields.io/github/release/commercialhaskell/stack.svg)](https://github.com/commercialhaskell/stack/releases)
 [![Join the chat at https://gitter.im/commercialhaskell/stack](https://badges.gitter.im/commercialhaskell/stack.svg)](https://gitter.im/commercialhaskell/stack?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 
@@ -12,4 +11,4 @@ information.
 
 ### Subsystem maintainers
 
-* GHCJS - [Matchwood](https://github.com/matchwood)
+* GHCJS - [Matchwood](https://github.com/matchwood)