docs(cluster-discovery): fix bad link and confusing port references
docs(cluster-discovery): fix bad link and confusing port references

nieanan/etcd,sebrandon1/etcd,kkaneda/etcd,msanterre/etcd,shawnps/etcd,SivagnanamCiena/etcd,cognusion/etcd,crandles/etcd,robszumski/etcd,sofuture/etcd,jonboulle/etcd,glensc/etcd,linuxcer/etcd,polvi/etcd,hpcloud/etcd,olark/etcd,ravigadde/etcd,honeyqa/etcd,hongchaodeng/etcd,etcd-io/etcd,swingbach/etcd,gae123/etcd,bakins/etcd,bspline/etcd,coreos/etcd,jefby/etcd,StorReduce/etcd,pengzj/etcd,wfxiang08/etcd,glycerine/etcd,Yhgenomics/etcd,cockroachdb/etcd,spacejam/etcd,Eagle-X/etcd,arthurcolle/etcd,steveeJ/etcd,yyljlyy/etcd,gyuho/etcd,hongchaodeng/etcd,fanminshi/etcd,tguangch/etcd,elimisteve/etcd,chai2010-playground/etcd,vimalk78/etcd,handsomesun/etcd,onlyjob/etcd,Winslett/etcd,hroyrh/etcd,nkhare/etcd,ecnahc515/etcd,siddontang/etcd,akauppi/etcd,hpcloud/etcd,TheHippo/etcd,nekto0n/etcd,plasticbox/etcd,snailwalker/etcd,lorneli/etcd,betawaffle/etcd,sofuture/etcd,handsomesun/etcd,mickep76/etcd,openedbox/etcd,jonboulle/etcd,fgbreel/etcd,mkumatag/etcd,njucslqq/etcd,yifan-gu/etcd,mkumatag/etcd,rchicoli/etcd,mwitkow-io/etcd,cvik/etcd,sebschrader/etcd,dannysauer/etcd,sebschrader/etcd,junxu/etcd,purpleidea/etcd,shafreeck/etcd,chenbaihu/etcd,improbable-io/etcd,giantswarm/etcd,yichengq/etcd,lorneli/etcd,qqsun8819/etcd,yyljlyy/etcd,svdata/etcd,qiaochao911/etcd,yudai/etcd,westhood/etcd,ylong/etcd,bdarnell/etcd,olark/etcd,xdlinear/etcd,es-chow/etcd,gosharplite/etcd,asim/etcd,elimisteve/etcd,mike-lerch/etcd,jchauncey/etcd,raoofm/etcd,westhood/etcd,dterei/etcd,openedbox/etcd,axingblog/etcd,chai2010/etcd,mqliang/etcd,mitake/etcd,wfxiang08/etcd,ktateish/etcd,gouyang/etcd,mwitkow-io/etcd,bdarnell/etcd,honeyqa/etcd,njharman/etcd,beni55/etcd,es-chow/etcd,spotify/etcd,TheHippo/etcd,ktateish/etcd,xychu/etcd,chai2010/etcd,xueshanf/etcd,linuxcer/etcd,mike-lerch/etcd,giantswarm/etcd,bakins/etcd,heyitsanthony/etcd,mkumatag/etcd,wowsoso/etcd,YuleiXiao/etcd,njharman/etcd,fanminshi/etcd,spotify/etcd,chenbaihu/etcd,zaphod-concur/etcd,chipironcin/etcd,xebitstudios/etcd,cchamplin/etcd,glevand/coreos--etcd,glensc/etcd,oscarrr110/etcd,hzy001/etcd,cvik/etcd,a-robinson/etcd,jefby/etcd,barakmich/etcd,iamqizhao/etcd,gyuho/etcd,wantonsolutions/dinv-etcd,gouyang/etcd,shakefu/etcd,SivagnanamCiena/etcd,fgbreel/etcd,nieanan/etcd,arthurcolle/etcd,raoofm/etcd,betawaffle/etcd,insequent/etcd,xdlinear/etcd,mitake/etcd,gtank/etcd,ecnahc515/etcd,csuideal/etcd,purpleidea/etcd,xiang90/etcd,princeqjzh/etcd,onlyjob/etcd,insionng/etcd,hongbinz/etcd,sinsharat/etcd,tamird/etcd,ajityagaty/etcd,gae123/etcd,delkyd/etcd,tamird/etcd,QuantiumTechnology/etcd,steveeJ/etcd,whuwxl/etcd,hroyrh/etcd,HideoYamauchi/etcd,visheshnp/etcd,justintung/etcd,freeloop1114/etcd,dnaeon/etcd,insionng/etcd,armstrongli/etcd,siddontang/etcd,cvik/etcd,spotify/etcd,tangkun75/etcd,bspline/etcd,cchamplin/etcd,improbable-io/etcd,heyitsanthony/etcd,qiaochao911/etcd,ylong/etcd,shawnps/etcd,fasaxc/etcd,tempbottle/etcd,asim/etcd,chai2010-playground/etcd,princeqjzh/etcd,shafreeck/etcd,qqsun8819/etcd,sinsharat/etcd,dterei/etcd,offscale/etcd,lzbgt/etcd,yudai/etcd,rchicoli/etcd,dnaeon/etcd,joshix/etcd,shakefu/etcd,endocode/etcd,pengzj/etcd,jlamillan/etcd,jchauncey/etcd,lzbgt/etcd,pauldallen/etcd,Winslett/etcd,fasaxc/etcd,achanda/etcd,mwitkow/etcd,cognusion/etcd,OyTao/etcd_learning,rnaveiras/etcd,YuleiXiao/etcd,cockroachdb/etcd,joshix/etcd,bluebreezecf/etcd,QuantiumTechnology/etcd,imzhulei/etcd,glevand/coreos--etcd,sayden/etcd,junxu/etcd,barakmich/etcd,jravetch/etcd,ajityagaty/etcd,li-ang/etcd,beni55/etcd,nekto0n/etcd,snailwalker/etcd,mgoelzer/etcd-fork2,gityf/etcd,jeremyeder/etcd,kkaneda/etcd,swingbach/etcd,devfreesg/etcd,fasaxc/etcd,Eagle-X/etcd,kingland/etcd,spotify/etcd,wowsoso/etcd,pigfoot/etcd,CrazyJvm/etcd,tangkun75/etcd,luxas/etcd,Yhgenomics/etcd,mischief/etcd,mickep76/etcd,polvi/etcd,etcd-io/etcd,achanda/etcd,gityf/etcd,insequent/etcd,buaazp/etcd,gosharplite/etcd,hzy001/etcd,dalanlan/etcd,devfreesg/etcd,CrazyJvm/etcd,msanterre/etcd,njucslqq/etcd,ajityagaty/etcd,xychu/etcd,wantonsolutions/dinv-etcd,lumjjb/etcd,mqliang/etcd,vimalk78/etcd,nkhare/etcd,buaazp/etcd,svdata/etcd,youxidev/etcd,yichengq/etcd,endocode/etcd,combk8s/etcd,freeloop1114/etcd,a-robinson/etcd,tguangch/etcd,luxas/etcd,zaphod-concur/etcd,HideoYamauchi/etcd,youxidev/etcd,gtank/etcd,bluebreezecf/etcd,etcd-io/etcd,dannysauer/etcd,plasticbox/etcd,StorReduce/etcd,lumjjb/etcd,whuwxl/etcd,visheshnp/etcd,combk8s/etcd,csuideal/etcd,mwitkow/etcd,jeremyeder/etcd,coreos/etcd,jravetch/etcd,wantonsolutions/dinv-etcd,imzhulei/etcd,chipironcin/etcd,cvik/etcd,Timer/etcd,mqliang/etcd,crandles/etcd,iamqizhao/etcd,oscarrr110/etcd,li-ang/etcd,Timer/etcd,offscale/etcd,ravigadde/etcd,robszumski/etcd,xiang90/etcd,hongbinz/etcd,rnaveiras/etcd,mischief/etcd,akauppi/etcd,glycerine/etcd,yifan-gu/etcd,tempbottle/etcd,sebrandon1/etcd,justintung/etcd,jmptrader/etcd,xebitstudios/etcd,spacejam/etcd,rnaveiras/etcd,OyTao/etcd_learning,jmptrader/etcd,jlamillan/etcd,dalanlan/etcd,pauldallen/etcd,xueshanf/etcd,armstrongli/etcd,sayden/etcd,mgoelzer/etcd-fork2,kingland/etcd,axingblog/etcd,delkyd/etcd