Align readme to aws-parallelcluster main package

Signed-off-by: Enrico Usai <[email protected]>

Author: Enrico Usai

README.rst

@@ -1,9 +1,14 @@
-=========================
-aws-parallelcluster-node
-=========================
+========================
+AWS ParallelCluster Node
+========================
 
-.. image:: https://travis-ci.org/aws/aws-parallelcluster-node.png?branch=develop
-   :target: https://travis-ci.org/aws/aws-parallelcluster-node
-   :alt: Build Status
+|Build Status| |Version|
 
-   aws-parallelcluster-node is the python package installed on the Amazon EC2 instances launched as part of AWS ParallelCluster.
+.. |Build Status| image:: https://travis-ci.org/aws/aws-parallelcluster-node.png?branch=develop
+    :target: https://travis-ci.org/aws/aws-parallelcluster-node/
+    :alt: Build Status
+.. |Version| image:: https://badge.fury.io/py/aws-parallelcluster-node.png
+    :target: https://badge.fury.io/py/aws-parallelcluster-node
+
+This repo contains the aws-parallelcluster-node package installed on the Amazon EC2 instances launched
+as part of AWS ParallelCluster.