README.md in zache-0.3.0 vs README.md in zache-0.3.1

- old
+ new
@@ -1,11 +1,13 @@
 [![EO principles respected here](http://www.elegantobjects.org/badge.svg)](http://www.elegantobjects.org)
 [![DevOps By Rultor.com](http://www.rultor.com/b/yegor256/zache)](http://www.rultor.com/p/yegor256/zache)
 [![We recommend RubyMine](http://www.elegantobjects.org/rubymine.svg)](https://www.jetbrains.com/ruby/)
 
 [![Build Status](https://travis-ci.org/yegor256/zache.svg)](https://travis-ci.org/yegor256/zache)
+[![Build status](https://ci.appveyor.com/api/projects/status/7eday736u9phnjiy?svg=true)](https://ci.appveyor.com/project/yegor256/zache)
 [![Gem Version](https://badge.fury.io/rb/zache.svg)](http://badge.fury.io/rb/zache)
 [![Maintainability](https://api.codeclimate.com/v1/badges/c136afe340fa94f14696/maintainability)](https://codeclimate.com/github/yegor256/zache/maintainability)
+[![Yard Docs](http://img.shields.io/badge/yard-docs-blue.svg)](http://rubydoc.info/github/yegor256/zache/master/frames)
 
 It's a simple Ruby gem for in-memory cache.
 
 First, install it:
 