update readme
update readme

umaxfun/hummingbird,mnutt/hummingbird,mikejihbe/hummingbird,soeffing/tracking_pixel,mnutt/hummingbird,ramr/openshift-hummingbird-example,ryana/sg-stats,ryana/sg-stats,mikejihbe/hummingbird,ramr/openshift-hummingbird-example,umaxfun/hummingbird,umaxfun/hummingbird,soeffing/tracking_pixel,mnutt/hummingbird,ramr/openshift-hummingbird-example