Add a twitter badge

README.md

@@ -10,6 +10,8 @@
 <br/>
 
 ## Codeowners Validator
+<a href="https://twitter.com/m_szostok"><img alt="Twitter Follow" src="https://img.shields.io/twitter/follow/m_szostok?color=a&label=Follow%20%40m_szostok%20for%20updates&style=social"></a>
+
 <a href="/LICENSE"><img alt="Software License" src="https://img.shields.io/badge/license-Apache-brightgreen.svg?style=flat-square"/></a>
 <a href="https://goreportcard.com/report/github.com/mszostok/codeowners-validator"><img alt="Go Report Card" src="https://goreportcard.com/badge/github.com/mszostok/codeowners-validator?style=flat-square"/></a>
 <a href="https://travis-ci.com/github/mszostok/codeowners-validator"><img alt="Travis" src="https://img.shields.io/travis/com/mszostok/codeowners-validator/master.svg?style=flat-square"/></a>