Show Semaphore CI build status badge in README, replacing the travis CI badge.
Show Semaphore CI build status badge in README, replacing the travis CI badge.

amatriain/feedbunch,jmwenda/feedbunch,amatriain/feedbunch,amatriain/feedbunch,jmwenda/feedbunch,jmwenda/feedbunch,amatriain/feedbunch