Badges and header for README.md (#3)

README.md

@@ -1,3 +1,10 @@
+# JVM Repr
+
+[![Build Status](https://travis-ci.org/jupyter/jvm-repr.svg?branch=master)](https://travis-ci.org/jupyter/jvm-repr)
+[![JVM repr on jitpack](https://jitpack.io/v/jupyter/jvm-repr.svg)](https://jitpack.io/#jupyter/jvm-repr)
+
+Standardizing REPL outputs for across JVM kernels (Scala, Clojure, Groovy, ...)
+
 ## Purpose
 
 JVM languages use various conventions to convert REPL outputs to forms that can be displayed. This project is an attempt to standardize by providing an API that libraries can use to register display methods for any REPL project, like Jupyter console or nteract.