Remove old CI badges

README.md

@@ -1,13 +1,10 @@
 # Grunt: The JavaScript Task Runner
 
-[![Build Status: Linux](https://travis-ci.org/gruntjs/grunt.svg?branch=master)](https://travis-ci.org/gruntjs/grunt)
-[![Build Status: Windows](https://ci.appveyor.com/api/projects/status/32r7s2skrgm9ubva/branch/master?svg=true)](https://ci.appveyor.com/project/gruntjs/grunt/branch/master)
 [![Built with Grunt](https://cdn.gruntjs.com/builtwith.svg)](http://gruntjs.com/)
 [![FOSSA Status](https://app.fossa.io/api/projects/git%2Bhttps%3A%2F%2Fgithub.com%2Fgruntjs%2Fgrunt.svg?type=shield)](https://app.fossa.io/projects/git%2Bhttps%3A%2F%2Fgithub.com%2Fgruntjs%2Fgrunt?ref=badge_shield)
 
 <img align="right" height="260" src="https://gruntjs.com/img/grunt-logo-no-wordmark.svg">
 
-
 ### Documentation
 
 Visit the [gruntjs.com](https://gruntjs.com/) website for all the things.
@@ -17,6 +14,7 @@ Visit the [gruntjs.com](https://gruntjs.com/) website for all the things.
 Before you make an issue, please read our [Contributing](https://gruntjs.com/contributing) guide.
 
 ### Release History
+
 See the [CHANGELOG](CHANGELOG).
 
 ### License