Add unit tests

Change-Id: I3ec31859259ce74b5eae4eaba94648f8a4fab077
diff --git a/README.rst b/README.rst
index 70fff0f..a473d98 100644
--- a/README.rst
+++ b/README.rst
@@ -38,7 +38,6 @@
           engine: amqp
           host: metrics1.domain.com
           port: 5672
-          
 
 Standalone Statsd server with OpenTSDB backend
 
@@ -51,7 +50,7 @@
           port: 8125
           address: 0.0.0.0
         backend:
-          engine: amqp
+          engine: opentsdb
           host: metrics1.domain.com
           port: 2003