a couple changes to the README
a couple changes to the README

thenovices/resque-retry,seomoz/resque-retry,lantins/resque-retry,thenovices/resque-retry,lantins/resque-retry,jzaleski/resque-retry,seomoz/resque-retry,jzaleski/resque-retry,lantins/resque-retry,thenovices/resque-retry,jzaleski/resque-retry,seomoz/resque-retry