Add build status to readmes

breaker/README.md

@@ -1,6 +1,7 @@
 circuit-breaker
 ===============
 
+[![Build Status](https://travis-ci.org/eapache/go-resiliency.svg?branch=master)](https://travis-ci.org/eapache/go-resiliency)
 [![GoDoc](https://godoc.org/github.com/eapache/go-resiliency/breaker?status.svg)](https://godoc.org/github.com/eapache/go-resiliency/breaker)
 
 The circuit-breaker resiliency pattern for golang.

semaphore/README.md

@@ -1,6 +1,7 @@
 semaphore
 =========
 
+[![Build Status](https://travis-ci.org/eapache/go-resiliency.svg?branch=master)](https://travis-ci.org/eapache/go-resiliency)
 [![GoDoc](https://godoc.org/github.com/eapache/go-resiliency/semaphore?status.svg)](https://godoc.org/github.com/eapache/go-resiliency/semaphore)
 
 The semaphore resiliency pattern for golang.