Add support for `-o/--browse` option for pull-request
Add support for `-o/--browse` option for pull-request

cpick/hub,aereal/hub,github/hub,pcorpet/hub,ASidlinskiy/hub,tomasv/hub,codydaig/hub,elancom/hub,nlutsenko/hub,SanCoder-Q/hub,pwaller/hub,ASidlinskiy/hub,haikyuu/hub,ASidlinskiy/hub,sbp/hub,rlugojr/hub,AndBicScadMedia/hub,rlugojr/hub,boris-rea/hub,whilp/hub,sbp/hub,jpkrohling/hub,adjohnson916/hub,naru0504/hub,RichardLitt/hub,tomasv/hub,haikyuu/hub,dongjoon-hyun/hub,jpkrohling/hub,aspiers/hub,terry2000/hub,nmfzone/hub,terry2000/hub,isundaylee/hub,naru0504/hub,SanCoder-Q/hub,ryo33/hub,hb9kns/hub,elancom/hub,dongjoon-hyun/hub,terry2000/hub,pankona/hub,isundaylee/hub,xantage/hub,github/hub,jingweno/hub,dev4mobile/hub,naru0504/hub,pankona/hub,pankona/hub,jingweno/hub,AndBicScadMedia/hub,dongjoon-hyun/hub,codydaig/hub,adjohnson916/hub,whilp/hub,adjohnson916/hub,whilp/hub,pcorpet/hub,github/hub,RichardLitt/hub,codydaig/hub,sbp/hub,cpick/hub,hb9kns/hub,pcorpet/hub,RichardLitt/hub,tomasv/hub,nlutsenko/hub,dev4mobile/hub,nmfzone/hub,haikyuu/hub,ryo33/hub,xantage/hub,ryo33/hub,hb9kns/hub,nlutsenko/hub,AndBicScadMedia/hub,aspiers/hub,cpick/hub,jingweno/hub,pwaller/hub,dev4mobile/hub,aspiers/hub,elancom/hub,hopil/hub,aereal/hub,boris-rea/hub,jpkrohling/hub,pwaller/hub,hopil/hub,rlugojr/hub,isundaylee/hub,aereal/hub,xantage/hub,hopil/hub,SanCoder-Q/hub,github/hub,boris-rea/hub,nmfzone/hub