format bullets in README
format bullets in README

SUSE/teuthology,robbat2/teuthology,ktdreyer/teuthology,SUSE/teuthology,SUSE/teuthology,yghannam/teuthology,yghannam/teuthology,dmick/teuthology,dmick/teuthology,zhouyuan/teuthology,dmick/teuthology,robbat2/teuthology,caibo2014/teuthology,ivotron/teuthology,dreamhost/teuthology,ktdreyer/teuthology,ceph/teuthology,ivotron/teuthology,michaelsevilla/teuthology,dreamhost/teuthology,michaelsevilla/teuthology,caibo2014/teuthology,tchaikov/teuthology,ceph/teuthology,tchaikov/teuthology,t-miyamae/teuthology,t-miyamae/teuthology,zhouyuan/teuthology