Add travis build badge

Hyunk3l · Hyunk3l · commit 49347c487b7d · 2017-03-02T21:40:45.000+01:00
diff --git a/README.md b/README.md
@@ -1,5 +1,7 @@
 # PHP Design Patterns
 
+[![Build Status](https://travis-ci.org/Hyunk3l/php-design-patterns.svg?branch=master)](https://travis-ci.org/Hyunk3l/php-design-patterns)
+
 ## Just another collection of design patterns implementations in PHP
 
 ## Work in Progress
