Added Readme

git-svn-id: svn+ssh://civmxsrv2.duhs.duke.edu/Users/civmsvn/svn/repos/radish_puller/trunk@2097 d41079a3-eaa1-4f09-8506-b324c47726bb
Merge branch 'master' of github.com:jamesjcook/radish_puller

git-svn-id: svn+ssh://civmxsrv2.duhs.duke.edu/Users/civmsvn/svn/repos/radish_puller/trunk@2208 d41079a3-eaa1-4f09-8506-b324c47726bb