Update README.rdoc
Update README.rdoc

added link to the releases section. Because I had to search in the forums to find the link and I was not the only one.
webstream-io/jobsworth,ari/jobsworth,ari/jobsworth,webstream-io/jobsworth,ari/jobsworth,xuewenfei/jobsworth,xuewenfei/jobsworth,ari/jobsworth,webstream-io/jobsworth,webstream-io/jobsworth,xuewenfei/jobsworth,xuewenfei/jobsworth