Merge pull request ReactiveX#1 from gitter-badger/gitter-badge

Add a Gitter chat badge to README.adoc

Author: RobWin

README.adoc

@@ -1,4 +1,6 @@
 = CircuitBreaker for Java8
+
+image:https://badges.gitter.im/Join%20Chat.svg[link="https://gitter.im/RobWin/circuitbreaker-java8?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge"]
 :author: Robert Winkler
 :version: 0.1.3
 :hardbreaks: