Update README.md

Author: bieniusa

README.md

@@ -1,4 +1,5 @@
-# Antidote CRDT library
+# Antidote CRDT library 
+[![Build Status](https://travis-ci.org/SyncFree/antidote_crdt.svg?branch=master)](https://travis-ci.org/SyncFree/antidote_crdt)
 
 CRDT implementations to use with Antidote.
 
@@ -29,4 +30,4 @@ Then execute the tests with:
 
 For more control, you can run PropEr manually and specify parameters like the tested module or the number of generated tests:
 
-	rebar3 proper -n 1000 -m prop_crdt_orset
+	rebar3 proper -n 1000 -m prop_crdt_orset