CP-8629: Add travis and coveralls badges

The badges will display the build status of the master branch.

Signed-off-by: Siddharth Vinothkumar <siddharth.vinothkumar@citrix.com>
Reviewed-by: Mate Lakat <mate.lakat@citrix.com>

README.md

@@ -1,5 +1,7 @@
 Storage Manager for XenServer
 =============================
+[![Build Status](https://travis-ci.org/xapi-project/sm.svg?branch=master)](https://travis-ci.org/xapi-project/sm)
+[![Coverage Status](https://coveralls.io/repos/xapi-project/sm/badge.png?branch=master)](https://coveralls.io/r/xapi-project/sm?branch=master)
 
 This repository contains the code which forms the Storage Management layer for XenSever. It consists of a series of "plug-ins" to xapi (the Xen management layer) which are written primarily in python.