Update README.md

Author: AydinHassan

README.md

@@ -5,6 +5,15 @@
 </p>
 
 <p align="center">
+    <a href="https://travis-ci.org/php-school/terminal" title="Build Status" target="_blank">
+     <img src="https://img.shields.io/travis/php-school/terminal/master.svg?style=flat-square&label=Linux" />
+    </a
+    <a href="https://codecov.io/github/php-school/terminal" title="Coverage Status" target="_blank">
+     <img src="https://img.shields.io/codecov/c/github/php-school/terminal.svg?style=flat-square" />
+    </a>
+    <a href="https://scrutinizer-ci.com/g/php-school/terminal/" title="Scrutinizer Code Quality" target="_blank">
+     <img src="https://img.shields.io/scrutinizer/g/php-school/terminal.svg?style=flat-square" />
+    </a>
     <a href="https://phpschool-team.slack.com/messages">
       <img src="https://phpschool.herokuapp.com/badge.svg">
     </a>
@@ -20,5 +29,4 @@ composer require php-school/terminal
 
 ## TODO
 
-- [ ] Tests
-- [ ] I/O separation
+- [ ] Docs