readme badge updates

README.md

@@ -6,6 +6,8 @@
     https://gitter.im/frohoff/ysoserial?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 [![Download Latest Snapshot](https://img.shields.io/badge/download-master--SNAPSHOT-green.svg)](
     https://jitpack.io/com/github/frohoff/ysoserial/master-SNAPSHOT/ysoserial-master-SNAPSHOT.jar)
+[![Travis Build Status](https://travis-ci.org/frohoff/ysoserial.svg?branch=master)](https://travis-ci.org/frohoff/ysoserial)
+[![Appveyor Build status](https://ci.appveyor.com/api/projects/status/a8tbk9blgr3yut4g/branch/master?svg=true)](https://ci.appveyor.com/project/frohoff/ysoserial/branch/master)
 
 A proof-of-concept tool for generating payloads that exploit unsafe Java object deserialization.
 
@@ -114,6 +116,7 @@ Requires Java 1.7+ and Maven 3.x+
 ## Code Status
 
 [![Build Status](https://travis-ci.org/frohoff/ysoserial.svg?branch=master)](https://travis-ci.org/frohoff/ysoserial)
+[![Build status](https://ci.appveyor.com/api/projects/status/a8tbk9blgr3yut4g/branch/master?svg=true)](https://ci.appveyor.com/project/frohoff/ysoserial/branch/master)
 
 ## Contributing