Use 6-5 branch in installation docs
Use 6-5 branch in installation docs

Signed-off-by: Dmitriy Zaporozhets <be23d75b156792e5acab51b196a2deb155d35d6a@gmail.com>

Burick/gitlabhq,Kambda/Mobbr,ikappas/gitlabhq,shinexiao/gitlabhq,copystudy/gitlabhq,hzy001/gitlabhq,Razer6/gitlabhq,axilleas/gitlabhq,theonlydoo/gitlabhq,fearenales/gitlabhq,jrjang/gitlabhq,MauriceMohlek/gitlabhq,luzhongyang/gitlabhq,fgbreel/gitlabhq,aaronsnyder/gitlabhq,allistera/gitlabhq,hacsoc/gitlabhq,pkgr/gitlabhq,ferdinandrosario/gitlabhq,williamherry/gitlabhq,tim-hoff/gitlabhq,julianengel/gitlabhq,aaronsnyder/gitlabhq,yatish27/gitlabhq,cui-liqiang/gitlab-ce,ngpestelos/gitlabhq,gopeter/gitlabhq,fantasywind/gitlabhq,michaKFromParis/sparkslab,TheWatcher/gitlabhq,adaiguoguo/gitlab_globalserarch,hacsoc/gitlabhq,yuyue2013/ss,pulkit21/gitlabhq,chadyred/gitlabhq,atomaka/gitlabhq,rhels/gitlabhq,LytayTOUCH/gitlabhq,allysonbarros/gitlabhq,rfeese/gitlab-ce,youprofit/gitlabhq,jaepyoung/gitlabhq,SVArago/gitlabhq,fgbreel/gitlabhq,whluwit/gitlabhq,cinderblock/gitlabhq,manfer/gitlabhq,icedwater/gitlabhq,dwrensha/gitlabhq,k4zzk/gitlabhq,ksoichiro/gitlabhq,ZeoAlliance/gitlabhq,rfeese/gitlab-ce,H3Chief/gitlabhq,flashbuckets/gitlabhq,screenpages/gitlabhq,hzy001/gitlabhq,sue445/gitlabhq,joalmeid/gitlabhq,akumetsuv/gitlab,gopeter/gitlabhq,bigsurge/gitlabhq,jaepyoung/gitlabhq,pkallberg/tjenare,pkgr/gitlabhq,Soullivaneuh/gitlabhq,daiyu/gitlab-zh,mathstuf/gitlabhq,Devin001/gitlabhq,OlegGirko/gitlab-ce,fgbreel/gitlabhq,allistera/gitlabhq,tk23/gitlabhq,eliasp/gitlabhq,copystudy/gitlabhq,delkyd/gitlabhq,julianengel/gitlabhq,ordiychen/gitlabhq,tim-hoff/gitlabhq,NARKOZ/gitlabhq,shinexiao/gitlabhq,mmkassem/gitlabhq,fpgentil/gitlabhq,yuyue2013/ss,hzy001/gitlabhq,louahola/gitlabhq,t-zuehlsdorff/gitlabhq,stoplightio/gitlabhq,folpindo/gitlabhq,nguyen-tien-mulodo/gitlabhq,jirutka/gitlabhq,OlegGirko/gitlab-ce,Keystion/gitlabhq,cinderblock/gitlabhq,NARKOZ/gitlabhq,jvanbaarsen/gitlabhq,tempbottle/gitlabhq,MauriceMohlek/gitlabhq,kitech/gitlabhq,Datacom/gitlabhq,pulkit21/gitlabhq,htve/GitlabForChinese,larryli/gitlabhq,shinexiao/gitlabhq,daiyu/gitlab-zh,revaret/gitlabhq,darkrasid/gitlabhq,manfer/gitlabhq,darkrasid/gitlabhq,dvrylc/gitlabhq,fearenales/gitlabhq,yulchitaj/TEST3,johnmyqin/gitlabhq,mrb/gitlabhq,atomaka/gitlabhq,dvrylc/gitlabhq,theodi/gitlabhq,Keystion/gitlabhq,ayufan/gitlabhq,k4zzk/gitlabhq,since2014/gitlabhq,mente/gitlabhq,atomaka/gitlabhq,fgbreel/gitlabhq,theodi/gitlabhq,it33/gitlabhq,liyakun/gitlabhq,ttasanen/gitlabhq,ordiychen/gitlabhq,szechyjs/gitlabhq,zrbsprite/gitlabhq,pkallberg/tjenare,aaronsnyder/gitlabhq,yonglehou/gitlabhq,htve/GitlabForChinese,yonglehou/gitlabhq,LytayTOUCH/gitlabhq,mente/gitlabhq,youprofit/gitlabhq,NARKOZ/gitlabhq,duduribeiro/gitlabhq,sakishum/gitlabhq,nguyen-tien-mulodo/gitlabhq,phinfonet/mobbr-gitlabhq,jrjang/gitlab-ce,SkyWei/gitlabhq,OlegGirko/gitlab-ce,Soullivaneuh/gitlabhq,openwide-java/gitlabhq,martijnvermaat/gitlabhq,Devin001/gitlabhq,fendoudeqingchunhh/gitlabhq,michaKFromParis/gitlabhq,ikappas/gitlabhq,dvrylc/gitlabhq,yatish27/gitlabhq,hzy001/gitlabhq,akumetsuv/gitlab,wangcan2014/gitlabhq,DanielZhangQingLong/gitlabhq,Kambda/Mobbr,SVArago/gitlabhq,per-garden/gitlabhq,fantasywind/gitlabhq,bozaro/gitlabhq,jrjang/gitlabhq,iiet/iiet-git,folpindo/gitlabhq,larryli/gitlabhq,salipro4ever/gitlabhq,Tyrael/gitlabhq,windymid/test2,stoplightio/gitlabhq,yama07/gitlabhq,wangcan2014/gitlabhq,theodi/gitlabhq,123Haynes/gitlabhq,akumetsuv/gitlab,mr-dxdy/gitlabhq,dvrylc/gitlabhq,icedwater/gitlabhq,michaKFromParis/gitlabhq,hacsoc/gitlabhq,k4zzk/gitlabhq,since2014/gitlabhq,ttasanen/gitlabhq,yfaizal/gitlabhq,sakishum/gitlabhq,bbodenmiller/gitlabhq,Kambda/mobbr-gitlabhq,123Haynes/gitlabhq,sideci-sample/sideci-sample-gitlabhq,mavimo/gitlabhq,revaret/gitlabhq,cncodog/gitlab,michaKFromParis/gitlabhqold,yatish27/gitlabhq,wangcan2014/gitlabhq,folpindo/gitlabhq,Telekom-PD/gitlabhq,fscherwi/gitlabhq,salipro4ever/gitlabhq,SkyWei/gitlabhq,chenrui2014/gitlabhq,mathstuf/gitlabhq,yulchitaj/TEST3,adaiguoguo/gitlab_globalserarch,jaepyoung/gitlabhq,Kambda/mobbr-gitlabhq,sonalkr132/gitlabhq,tk23/gitlabhq,ZeoAlliance/gitlabhq,LUMC/gitlabhq,LUMC/gitlabhq,windymid/test2,shinexiao/gitlabhq,ibiart/gitlabhq,iiet/iiet-git,yonglehou/gitlabhq,k4zzk/gitlabhq,rebecamendez/gitlabhq,OtkurBiz/gitlabhq,yfaizal/gitlabhq,williamherry/gitlabhq,LytayTOUCH/gitlabhq,duduribeiro/gitlabhq,duduribeiro/gitlabhq,SkyWei/gitlabhq,ZeoAlliance/gitlabhq,stellamiranda/mobbr-gitlabhq,chenrui2014/gitlabhq,ksoichiro/gitlabhq,michaKFromParis/sparkslab,gopeter/gitlabhq,ikappas/gitlabhq,daiyu/gitlab-zh,tempbottle/gitlabhq,pjknkda/gitlabhq,Devin001/gitlabhq,vjustov/gitlabhq,8thcolor/testing-public-gitlabhq,koreamic/gitlabhq,sue445/gitlabhq,fscherwi/gitlabhq,michaKFromParis/gitlabhqold,sue445/gitlabhq,gopeter/gitlabhq,eliasp/gitlabhq,louahola/gitlabhq,yfaizal/gitlabhq,tim-hoff/gitlabhq,nmav/gitlabhq,Datacom/gitlabhq,fantasywind/gitlabhq,daiyu/gitlab-zh,yama07/gitlabhq,sonalkr132/gitlabhq,Razer6/gitlabhq,TheWatcher/gitlabhq,jairzh/gitlabhq-sfdc,t-zuehlsdorff/gitlabhq,per-garden/gitlabhq,dreampet/gitlab,nguyen-tien-mulodo/gitlabhq,vjustov/gitlabhq,NKMR6194/gitlabhq,bozaro/gitlabhq,pjknkda/gitlabhq,Tyrael/gitlabhq,adaiguoguo/gitlab_globalserarch,hq804116393/gitlabhq,whluwit/gitlabhq,screenpages/gitlabhq,martinma4/gitlabhq,childbamboo/gitlabhq,ordiychen/gitlabhq,mavimo/gitlabhq,pkgr/gitlabhq,123Haynes/gitlabhq,8thcolor/testing-public-gitlabhq,rumpelsepp/gitlabhq,yuyue2013/ss,WSDC-NITWarangal/gitlabhq,delkyd/gitlabhq,ferdinandrosario/gitlabhq,martinma4/gitlabhq,szechyjs/gitlabhq,Tyrael/gitlabhq,rumpelsepp/gitlabhq,lvfeng1130/gitlabhq,rhels/gitlabhq,michaKFromParis/sparkslab,cinderblock/gitlabhq,ngpestelos/gitlabhq,liyakun/gitlabhq,fantasywind/gitlabhq,SVArago/gitlabhq,mente/gitlabhq,yfaizal/gitlabhq,MauriceMohlek/gitlabhq,ibiart/gitlabhq,Soullivaneuh/gitlabhq,rhels/gitlabhq,Datacom/gitlabhq,mmkassem/gitlabhq,johnmyqin/gitlabhq,childbamboo/gitlabhq,flashbuckets/gitlabhq,WSDC-NITWarangal/gitlabhq,rumpelsepp/gitlabhq,jvanbaarsen/gitlabhq,Exeia/gitlabhq,martinma4/gitlabhq,fearenales/gitlabhq,stoplightio/gitlabhq,joalmeid/gitlabhq,kotaro-dev/gitlab-6-9,dukex/gitlabhq,t-zuehlsdorff/gitlabhq,copystudy/gitlabhq,hq804116393/gitlabhq,bbodenmiller/gitlabhq,bladealslayer/gitlabhq,jaepyoung/gitlabhq,louahola/gitlabhq,mrb/gitlabhq,phinfonet/mobbr-gitlabhq,cui-liqiang/gitlab-ce,htve/GitlabForChinese,dplarson/gitlabhq,mrb/gitlabhq,lvfeng1130/gitlabhq,initiummedia/gitlabhq,eliasp/gitlabhq,chenrui2014/gitlabhq,luzhongyang/gitlabhq,pulkit21/gitlabhq,zrbsprite/gitlabhq,johnmyqin/gitlabhq,darkrasid/gitlabhq,mr-dxdy/gitlabhq,cncodog/gitlab,mathstuf/gitlabhq,vjustov/gitlabhq,joalmeid/gitlabhq,stanhu/gitlabhq,jrjang/gitlabhq,kitech/gitlabhq,gorgee/gitlabhq,liyakun/gitlabhq,initiummedia/gitlabhq,adaiguoguo/gitlab_globalserarch,jvanbaarsen/gitlabhq,bladealslayer/gitlabhq,luzhongyang/gitlabhq,pjknkda/gitlabhq,sakishum/gitlabhq,dwrensha/gitlabhq,dreampet/gitlab,sonalkr132/gitlabhq,salipro4ever/gitlabhq,jrjang/gitlabhq,fendoudeqingchunhh/gitlabhq,fendoudeqingchunhh/gitlabhq,kitech/gitlabhq,ksoichiro/gitlabhq,sekcheong/gitlabhq,allistera/gitlabhq,theonlydoo/gitlabhq,rhels/gitlabhq,MauriceMohlek/gitlabhq,dreampet/gitlab,windymid/test2,axilleas/gitlabhq,ferdinandrosario/gitlabhq,larryli/gitlabhq,rumpelsepp/gitlabhq,WSDC-NITWarangal/gitlabhq,nmav/gitlabhq,childbamboo/gitlabhq,whluwit/gitlabhq,mr-dxdy/gitlabhq,bozaro/gitlabhq,jrjang/gitlab-ce,kotaro-dev/gitlab-6-9,Keystion/gitlabhq,youprofit/gitlabhq,dplarson/gitlabhq,it33/gitlabhq,szechyjs/gitlabhq,H3Chief/gitlabhq,mavimo/gitlabhq,sue445/gitlabhq,luzhongyang/gitlabhq,ttasanen/gitlabhq,ayufan/gitlabhq,nguyen-tien-mulodo/gitlabhq,gorgee/gitlabhq,LytayTOUCH/gitlabhq,bbodenmiller/gitlabhq,sekcheong/gitlabhq,Kambda/mobbr-gitlabhq,allysonbarros/gitlabhq,williamherry/gitlabhq,icedwater/gitlabhq,jrjang/gitlab-ce,Exeia/gitlabhq,manfer/gitlabhq,kitech/gitlabhq,openwide-java/gitlabhq,vjustov/gitlabhq,NKMR6194/gitlabhq,flashbuckets/gitlabhq,NuLL3rr0r/gitlabhq,Razer6/gitlabhq,t-zuehlsdorff/gitlabhq,delkyd/gitlabhq,dwrensha/gitlabhq,bigsurge/gitlabhq,cui-liqiang/gitlab-ce,dreampet/gitlab,nmav/gitlabhq,Razer6/gitlabhq,ngpestelos/gitlabhq,jairzh/gitlabhq-sfdc,eliasp/gitlabhq,stanhu/gitlabhq,julianengel/gitlabhq,DanielZhangQingLong/gitlabhq,copystudy/gitlabhq,joalmeid/gitlabhq,fendoudeqingchunhh/gitlabhq,sekcheong/gitlabhq,sideci-sample/sideci-sample-gitlabhq,revaret/gitlabhq,nmav/gitlabhq,kemenaran/gitlabhq,ngpestelos/gitlabhq,bigsurge/gitlabhq,sideci-sample/sideci-sample-gitlabhq,Exeia/gitlabhq,chadyred/gitlabhq,it33/gitlabhq,OtkurBiz/gitlabhq,cncodog/gitlab,jirutka/gitlabhq,darkrasid/gitlabhq,SVArago/gitlabhq,Telekom-PD/gitlabhq,dplarson/gitlabhq,liyakun/gitlabhq,zBMNForks/gitlabhq,xuvw/gitlabhq,fscherwi/gitlabhq,dplarson/gitlabhq,rfeese/gitlab-ce,michaKFromParis/gitlabhqold,ayufan/gitlabhq,chadyred/gitlabhq,michaKFromParis/sparkslab,mmkassem/gitlabhq,openwide-java/gitlabhq,stanhu/gitlabhq,revaret/gitlabhq,pjknkda/gitlabhq,sekcheong/gitlabhq,pkallberg/tjenare,DanielZhangQingLong/gitlabhq,H3Chief/gitlabhq,cncodog/gitlab,rebecamendez/gitlabhq,tempbottle/gitlabhq,kemenaran/gitlabhq,folpindo/gitlabhq,Burick/gitlabhq,bozaro/gitlabhq,allistera/gitlabhq,louahola/gitlabhq,rfeese/gitlab-ce,TheWatcher/gitlabhq,koreamic/gitlabhq,stoplightio/gitlabhq,yama07/gitlabhq,michaKFromParis/gitlabhq,axilleas/gitlabhq,Keystion/gitlabhq,dukex/gitlabhq,salipro4ever/gitlabhq,theodi/gitlabhq,flashbuckets/gitlabhq,aaronsnyder/gitlabhq,childbamboo/gitlabhq,OtkurBiz/gitlabhq,jrjang/gitlab-ce,tim-hoff/gitlabhq,koreamic/gitlabhq,williamherry/gitlabhq,chadyred/gitlabhq,fearenales/gitlabhq,martijnvermaat/gitlabhq,H3Chief/gitlabhq,manfer/gitlabhq,jirutka/gitlabhq,delkyd/gitlabhq,bbodenmiller/gitlabhq,WSDC-NITWarangal/gitlabhq,NKMR6194/gitlabhq,bigsurge/gitlabhq,LUMC/gitlabhq,julianengel/gitlabhq,screenpages/gitlabhq,NuLL3rr0r/gitlabhq,tempbottle/gitlabhq,pulkit21/gitlabhq,Burick/gitlabhq,mrb/gitlabhq,iiet/iiet-git,allysonbarros/gitlabhq,dukex/gitlabhq,martinma4/gitlabhq,sonalkr132/gitlabhq,hq804116393/gitlabhq,zrbsprite/gitlabhq,kemenaran/gitlabhq,phinfonet/mobbr-gitlabhq,NKMR6194/gitlabhq,8thcolor/testing-public-gitlabhq,yulchitaj/TEST3,rebecamendez/gitlabhq,fscherwi/gitlabhq,per-garden/gitlabhq,michaKFromParis/gitlabhqold,gorgee/gitlabhq,NuLL3rr0r/gitlabhq,since2014/gitlabhq,tk23/gitlabhq,Soullivaneuh/gitlabhq,OtkurBiz/gitlabhq,initiummedia/gitlabhq,mathstuf/gitlabhq,xuvw/gitlabhq,sakishum/gitlabhq,jvanbaarsen/gitlabhq,stanhu/gitlabhq,LUMC/gitlabhq,duduribeiro/gitlabhq,theonlydoo/gitlabhq,jairzh/gitlabhq-sfdc,Telekom-PD/gitlabhq,ferdinandrosario/gitlabhq,gorgee/gitlabhq,SkyWei/gitlabhq,lvfeng1130/gitlabhq,axilleas/gitlabhq,stellamiranda/mobbr-gitlabhq,fpgentil/gitlabhq,per-garden/gitlabhq,ksoichiro/gitlabhq,cui-liqiang/gitlab-ce,dukex/gitlabhq,htve/GitlabForChinese,dwrensha/gitlabhq,ikappas/gitlabhq,fpgentil/gitlabhq,rebecamendez/gitlabhq,ibiart/gitlabhq,fpgentil/gitlabhq,Kambda/Mobbr,NARKOZ/gitlabhq,lvfeng1130/gitlabhq,mmkassem/gitlabhq,szechyjs/gitlabhq,theonlydoo/gitlabhq,it33/gitlabhq,kemenaran/gitlabhq,Devin001/gitlabhq,Datacom/gitlabhq,screenpages/gitlabhq,ttasanen/gitlabhq,initiummedia/gitlabhq,iiet/iiet-git,cinderblock/gitlabhq,Burick/gitlabhq,icedwater/gitlabhq,zBMNForks/gitlabhq,Telekom-PD/gitlabhq,zBMNForks/gitlabhq,tk23/gitlabhq,wangcan2014/gitlabhq,martijnvermaat/gitlabhq,michaKFromParis/gitlabhq,xuvw/gitlabhq,youprofit/gitlabhq,yulchitaj/TEST3,martijnvermaat/gitlabhq,yuyue2013/ss,kotaro-dev/gitlab-6-9,openwide-java/gitlabhq,chenrui2014/gitlabhq,whluwit/gitlabhq,johnmyqin/gitlabhq,jairzh/gitlabhq-sfdc,hq804116393/gitlabhq,mavimo/gitlabhq,ordiychen/gitlabhq,ayufan/gitlabhq,Tyrael/gitlabhq,Exeia/gitlabhq,koreamic/gitlabhq,jirutka/gitlabhq,yatish27/gitlabhq,since2014/gitlabhq,TheWatcher/gitlabhq,larryli/gitlabhq,mente/gitlabhq,hacsoc/gitlabhq,zBMNForks/gitlabhq,yonglehou/gitlabhq,allysonbarros/gitlabhq,zrbsprite/gitlabhq,stellamiranda/mobbr-gitlabhq,bladealslayer/gitlabhq,mr-dxdy/gitlabhq,DanielZhangQingLong/gitlabhq,yama07/gitlabhq,OlegGirko/gitlab-ce