Add directions on how to upgrade gitlab-shell in the upgrader guide.
Add directions on how to upgrade gitlab-shell in the upgrader guide.

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