[ci skip] Improve 3.0 upgrade instructions rendering
[ci skip] Improve 3.0 upgrade instructions rendering

Close #3876

it-can/CodeIgniter,asaharan/skillscroll,butane/CodeIgniter,doniisetiiawan/CodeIgniter,serkanerdinc/cms,asaharan/skillscroll,chadzilla2080/CodeIgniter,chinatown34/ci_bind_wrap,kala725/CodeIgniter-with-React,Neoskate/CodeIgniter,DiederikLascaris/CodeIgniter,AndreiMariusSili/EnactusMVC,ShrmnK/CodeIgniter,ipabz/CodeIgniter,ShrmnK/CodeIgniter,poing/CodeIgniter,CodeIgniter-Chinese/CodeIgniter,Husseinat/engsoft,kukuhsetiawan/CodeIgniter,pravinhirmukhe/CodeIgniter,DavidOtis/CodeIgniter,rajrathore/CodeIgniter,tianhe1986/CodeIgniter,globlob/CodeIgniter,kenjis/CodeIgniter,openset/ci,doniisetiiawan/CodeIgniter,titounnes/CI_BaseConfig,dinhmv/demo,KmServer/CodeIgniter,ivantcholakov/CodeIgniter,fengss/CodeIgniter,jiaojie1989/CodeIgniter,fjsevillamora/CodeIgniter,marimarluna/CodeIgniter-develop,Avantians/CodeIgniter,Bluewind/filebin,jiachenning/CodeIgniter,SmileDrug/CodeIgniter,openset/ci,Brother-Simon/CodeIgniter,kobeuu/CodeIgniter,asmdigital/CodeIgniter,Calico90/CodeIgniter,roastduck/CodeIgniter,zhanghongyi/CodeIgniter,bcit-ci/CodeIgniter,ShrmnK/CodeIgniter,darrelljefferson/viper,zhaoyan158567/CodeIgniter,Sevdr/CodeIgniter,openset/ci,Avantians/CodeIgniter,Gektorian/CodeIgniter,usbader/QuizApp,feryardiant/codeigniter,megaspy/rental,aperera/CodeIgniter,moon-siama/codeigniter,tschmidiger/CodeIgniter,chadzilla2080/CodeIgniter,invitecomm/CodeIgniter,ajose1024/Code_Igniter_Extended,it-can/CodeIgniter,nonconforme/CodeIgniter,Oiro/CodeIgniter,kigsmtua/CodeIgniter,nandadotexe/CodeIgniter,Sproypef/CodeIgniter_AdminLTE2_Blade,marimarluna/CodeIgniter-develop,runphp/CodeIgniter,namnv609/CodeIgniter,yonineitor/CodeIgniter,gastongr/CodeIgniter,HindrikDeelstra/codeigniter-snackapp,rochefort/CodeIgniter,joel-medeiros/CodeIgniter,avenirer/CodeIgniter,KmServer/CodeIgniter,skullJ/CodeIgniter,r-cis/CodeIgniter,zhangzhengyu/CodeIgniter,smallp/CodeIgniter,butane/CodeIgniter,Cediwallet/code,bcit-ci/CodeIgniter,poing/CodeIgniter,puhua/CodeIgniter,ajose1024/Code_Igniter_Extended,whilewon/CodeIgniter,openset/ci,dotancohen/CodeIgniter,irfanevrens/CodeIgniter,taro-asahi/CodeIgniter,ytetsuro/CodeIgniter,Neoskate/CodeIgniter,zhanghongyi/CodeIgniter,ganiutomo/CodeIgniter,benms/CodeIgniter,titounnes/CodeIgniter,weslenam/kymera,lonnieezell/CodeIgniter,namnv609/CodeIgniter,vrkansagara/CodeIgniter,shrimpma/CodeIgniter,ster/CodeIgniter,Brother-Simon/CodeIgniter,aquarion/CodeIgniter,zares85/mvf,AndreiMariusSili/Enactus,madnik/CodeIgniter,trinet-at/CodeIgniter,it-can/CodeIgniter,b1tc0re/CodeIgniter,alex1442/CodeIgniter,Brother-Simon/CodeIgniter,iLotus/CodeIgniter,invitecomm/CodeIgniter,sampoyigi/CodeIgniter,cgvarela/CodeIgniter,Tpojka/CodeIgniter,gopalindians/CodeIgniter,it-can/CodeIgniter,kuaimainc/Kuaima-CodeIgniter,irfanevrens/CodeIgniter,rajrathore/CodeIgniter,it-can/CodeIgniter,madwings/InsaneDB,skullJ/CodeIgniter,faregon/CodeIgniter,juanjosemiranda/primer,shanavas786/CodeIgniter,rafelsanso/kitmaker-project,Brother-Simon/CodeIgniter,madnik/CodeIgniter,juanjosemiranda/primer,codergma/CodeIgniter,taro-asahi/CodeIgniter,dotancohen/CodeIgniter,daoyuly/CodeIgniter,avenirer/CodeIgniter,gt945/CodeIgniter,titounnes/CI_BaseConfig,RobbertdeJel/CodeIgniter,natepizzle/nah-codeigniter,zhangbo127/CodeIgniter,ytetsuro/CodeIgniter,liuxulei/CodeIgniter,mewt/CodeIgniter,darrelljefferson/viper,pkuclay/CodeIgniter,aquasky111/CodeIgniter,KIGOTHO/CodeIgniter,shanavas786/CodeIgniter,natepizzle/nah-codeigniter,juanjosemiranda/primer,DiZyStudio/ci,r-cis/CodeIgniter,Gektorian/CodeIgniter,RobbertdeJel/CodeIgniter,sebastienadam/CodeIgniter,ftwbzhao/CodeIgniter,chadzilla2080/CodeIgniter,zhaoyan158567/CodeIgniter,aperera/CodeIgniter,Avantians/CodeIgniter,demenvil/CodeIgniter,fjsevillamora/CodeIgniter,MjAbuz/CodeIgniter,nishatbaig/CodeIgniter,fengss/CodeIgniter,neomadara/CodeIgniter,JungMinu/CodeIgniter,ster/CodeIgniter,butane/CodeIgniter,n054/CodeIgniter,antoniors/CodeIgniter,gopalindians/CodeIgniter,Cediwallet/code,saisai/CodeIgniter,dkarvounaris/CodeIgniter,yonineitor/CodeIgniter,mfaraz/CodeIgniter,souparno/CodeIgniter,serkanerdinc/cms,galdiolo/CodeIgniter,irfanevrens/CodeIgniter,titounnes/CI_BaseConfig,Sproypef/CodeIgniter_AdminLTE2_Blade,joariasl/CodeIgniter,Oiro/CodeIgniter,kamaslau/BasicCodeIgniter,freeztime/CodeIgniter,mfaraz/CodeIgniter,saisai/CodeIgniter,nadeemehsan9/CodeIgniter,shrimpma/CodeIgniter,Bluewind/filebin,HindrikDeelstra/codeigniter-snackapp,ganiutomo/CodeIgniter,KmServer/CodeIgniter,zcodes/CodeIgniter,nonconforme/CodeIgniter,SmileDrug/CodeIgniter,ipabz/CodeIgniter,jiachenning/CodeIgniter,aryan-2016/CodeIgniter,dcarbone/CodeIgniter,andersonunsonst/CodeIgniter,Sevdr/CodeIgniter,trinet-at/CodeIgniter,yonineitor/CodeIgniter,aperera/CodeIgniter,jiachenning/CodeIgniter,RobbertdeJel/CodeIgniter,aquasky111/CodeIgniter,ET-NiK/CodeIgniter,zhangzhengyu/CodeIgniter,dhayalram123/CodeIgniter,cmayo/CodeIgniter,saisai/CodeIgniter,kenjis/CodeIgniter,irfanevrens/CodeIgniter,ndigitals/CodeIgniter,fireflex/parking,rochefort/CodeIgniter,fireflex/parking,DiZyStudio/ci,bcit-ci/CodeIgniter,madwings/InsaneDB,Bluewind/filebin,KeiroD/CodeIgniter,HindrikDeelstra/codeigniter-snackapp,pravinhirmukhe/CodeIgniter,chinatown34/ci_bind_wrap,dhayalram123/CodeIgniter,b1tc0re/CodeIgniter,Bluewind/filebin,weslenam/kymera,zcodes/CodeIgniter,madwings/InsaneDB,AndreiMariusSili/Enactus,n054/CodeIgniter,asp7bit/trackindo,jim-parry/CodeIgniter,marimarluna/CodeIgniter-develop,natepizzle/nah-codeigniter,pravinhirmukhe/CodeIgniter,kamaslau/BasicCodeIgniter,lucasfong/CodeIgniter,jellycheng/CodeIgniter,pkdevbox/CodeIgniter,serpes/CodeIgniter,rafelsanso/kitmaker-project,nandadotexe/CodeIgniter,nadeemehsan9/CodeIgniter,shrimpma/CodeIgniter,weslenam/kymera,ShrmnK/CodeIgniter,DiZyStudio/ci,aryan-2016/CodeIgniter,tschmidiger/CodeIgniter,zhangbo127/CodeIgniter,tianhe1986/CodeIgniter,Tpojka/CodeIgniter,Sevdr/CodeIgniter,kuaimainc/Kuaima-CodeIgniter,Sproypef/CodeIgniter_AdminLTE2_Blade,pkdevbox/CodeIgniter,iLotus/CodeIgniter,ytetsuro/CodeIgniter,Sproypef/CodeIgniter_AdminLTE2_Blade,eddomirsyad/CodeIgniter,Calico90/CodeIgniter,roastduck/CodeIgniter,yonineitor/CodeIgniter,MonCoder/CodeIgniter,jim-parry/CodeIgniter,vlakoff/CodeIgniter,CodeIgniter-Chinese/CodeIgniter,alex1442/CodeIgniter,invitecomm/CodeIgniter,eddomirsyad/CodeIgniter,b1tc0re/CodeIgniter,SmileDrug/CodeIgniter,zoaked/CodeIgniter,mfaraz/CodeIgniter,asp7bit/trackindo,avenirer/CodeIgniter,cgvarela/CodeIgniter,nandadotexe/CodeIgniter,KeiroD/CodeIgniter,ftwbzhao/CodeIgniter,FacundoGFlores/CodeIgniter,zhangbo127/CodeIgniter,ET-NiK/CodeIgniter,CodeIgniter-Chinese/CodeIgniter,gt945/CodeIgniter,zhanghongyi/CodeIgniter,Sevdr/CodeIgniter,eddomirsyad/CodeIgniter,b1tc0re/CodeIgniter,taro-asahi/CodeIgniter,ster/CodeIgniter,daoyuly/CodeIgniter,Calico90/CodeIgniter,galdiolo/CodeIgniter,ivantcholakov/CodeIgniter,WSDC-NITWarangal/CodeIgniter,zcodes/CodeIgniter,fengss/CodeIgniter,andersonunsonst/CodeIgniter,aperera/CodeIgniter,butane/CodeIgniter,tschmidiger/CodeIgniter,rajrathore/CodeIgniter,joariasl/CodeIgniter,dotancohen/CodeIgniter,msnonari/CodeIgniter,skullJ/CodeIgniter,pkuclay/CodeIgniter,Oiro/CodeIgniter,DiederikLascaris/CodeIgniter,kukuhsetiawan/CodeIgniter,zhanghongyi/CodeIgniter,AndreiMariusSili/EnactusMVC,benms/CodeIgniter,aquasky111/CodeIgniter,bcit-ci/CodeIgniter,shrimpma/CodeIgniter,zhaoyan158567/CodeIgniter,kamaslau/BasicCodeIgniter,madwings/InsaneDB,fireflex/parking,moon-siama/codeigniter,neomadara/CodeIgniter,DiederikLascaris/CodeIgniter,Neoskate/CodeIgniter,souparno/CodeIgniter,ipabz/CodeIgniter,rochefort/CodeIgniter,kenjis/CodeIgniter,kigsmtua/CodeIgniter,ftwbzhao/CodeIgniter,tianhe1986/CodeIgniter,zoaked/CodeIgniter,fireflex/parking,ET-NiK/CodeIgniter,poing/CodeIgniter,neomadara/CodeIgniter,cmayo/CodeIgniter,rafelsanso/kitmaker-project,usbader/QuizApp,vlakoff/CodeIgniter,faozimipa/CodeIgniter,sampoyigi/CodeIgniter,DavidOtis/CodeIgniter,WSDC-NITWarangal/CodeIgniter,tianhe1986/CodeIgniter,andreaslangsays/CodeIgniter,roastduck/CodeIgniter,daoyuly/CodeIgniter,zhangzhengyu/CodeIgniter,Husseinat/engsoft,neomadara/CodeIgniter,rootcss/CodeIgniter,freeztime/CodeIgniter,RobbertdeJel/CodeIgniter,b1tc0re/CodeIgniter,madnik/CodeIgniter,Tpojka/CodeIgniter,Gektorian/CodeIgniter,vlakoff/CodeIgniter,JungMinu/CodeIgniter,andreaslangsays/CodeIgniter,alex1442/CodeIgniter,invitecomm/CodeIgniter,dhayalram123/CodeIgniter,DiederikLascaris/CodeIgniter,dcarbone/CodeIgniter,kobeuu/CodeIgniter,ganiutomo/CodeIgniter,demenvil/CodeIgniter,dimaspermadiyp/CodeIgniter,LamarKing/CodeIgniter,ET-NiK/CodeIgniter,tangposmarvin/CodeIgniter,n054/CodeIgniter,liuxulei/CodeIgniter,joel-medeiros/CodeIgniter,kigsmtua/CodeIgniter,weslenam/kymera,globlob/CodeIgniter,rootcss/CodeIgniter,marimarluna/CodeIgniter-develop,mfaraz/CodeIgniter,kukuhsetiawan/CodeIgniter,megaspy/rental,Bluewind/filebin,pkdevbox/CodeIgniter,fjsevillamora/CodeIgniter,TimHuangcheng/CodeIgniter,AndreiMariusSili/EnactusMVC,openset/ci,chinatown34/ci_bind_wrap,kala725/CodeIgniter-with-React,Gektorian/CodeIgniter,WSDC-NITWarangal/CodeIgniter,Tpojka/CodeIgniter,mewt/CodeIgniter,CodeIgniter-Chinese/CodeIgniter,joel-medeiros/CodeIgniter,FacundoGFlores/CodeIgniter,juanjosemiranda/primer,bcit-ci/CodeIgniter,faozimipa/CodeIgniter,usbader/QuizApp,r-cis/CodeIgniter,HindrikDeelstra/codeigniter-snackapp,netsan/CodeIgniter-Research,smallp/CodeIgniter,zares85/mvf,aquarion/CodeIgniter,rochefort/CodeIgniter,codergma/CodeIgniter,MonCoder/CodeIgniter,vrkansagara/CodeIgniter,lucasfong/CodeIgniter,titounnes/CodeIgniter,codergma/CodeIgniter,andreaslangsays/CodeIgniter,joariasl/CodeIgniter,acepsaepudin/traffic-infrastructure-app,antoniors/CodeIgniter,freeztime/CodeIgniter,lucasfong/CodeIgniter,tschmidiger/CodeIgniter,titounnes/CI_BaseConfig,DavidOtis/CodeIgniter,JungMinu/CodeIgniter,zcodes/CodeIgniter,titounnes/CI_BaseConfig,ipabz/CodeIgniter,nishatbaig/CodeIgniter,kuaimainc/Kuaima-CodeIgniter,ivantcholakov/CodeIgniter,faregon/CodeIgniter,whilewon/CodeIgniter,joariasl/CodeIgniter,stevebritton/CodeIgniter,Tpojka/CodeIgniter,roastduck/CodeIgniter,msnonari/CodeIgniter,SmileDrug/CodeIgniter,Husseinat/engsoft,dimaspermadiyp/CodeIgniter,feryardiant/codeigniter,KIGOTHO/CodeIgniter,ganiutomo/CodeIgniter,serkanerdinc/cms,natepizzle/nah-codeigniter,madwings/InsaneDB,asmdigital/CodeIgniter,faozimipa/CodeIgniter,whilewon/CodeIgniter,jellycheng/CodeIgniter,msnonari/CodeIgniter,pkdevbox/CodeIgniter,sebastienadam/CodeIgniter,MonCoder/CodeIgniter,jim-parry/CodeIgniter,andreaslangsays/CodeIgniter,ivantcholakov/CodeIgniter,jiaojie1989/CodeIgniter,moon-siama/codeigniter,DavidOtis/CodeIgniter,souparno/CodeIgniter,feryardiant/codeigniter,lonnieezell/CodeIgniter,stevebritton/CodeIgniter,KeiroD/CodeIgniter,kala725/CodeIgniter-with-React,dcarbone/CodeIgniter,KeiroD/CodeIgniter,ivantcholakov/CodeIgniter,tangposmarvin/CodeIgniter,vrkansagara/CodeIgniter,DiederikLascaris/CodeIgniter,dinhmv/demo,Cediwallet/code,joel-medeiros/CodeIgniter,whilewon/CodeIgniter,fengss/CodeIgniter,MjAbuz/CodeIgniter,Husseinat/engsoft,asmdigital/CodeIgniter,pkuclay/CodeIgniter,dhayalram123/CodeIgniter,LamarKing/CodeIgniter,r-cis/CodeIgniter,KeiroD/CodeIgniter,rootcss/CodeIgniter,aquarion/CodeIgniter,dinhmv/demo,kala725/CodeIgniter-with-React,gastongr/CodeIgniter,Calico90/CodeIgniter,invitecomm/CodeIgniter,sebastienadam/CodeIgniter,kigsmtua/CodeIgniter,iLotus/CodeIgniter,darrelljefferson/viper,KIGOTHO/CodeIgniter,weslenam/kymera,dkarvounaris/CodeIgniter,MjAbuz/CodeIgniter,taro-asahi/CodeIgniter,shanavas786/CodeIgniter,titounnes/CodeIgniter,rafelsanso/kitmaker-project,Calico90/CodeIgniter,sampoyigi/CodeIgniter,acepsaepudin/traffic-infrastructure-app,tangposmarvin/CodeIgniter,msnonari/CodeIgniter,freeztime/CodeIgniter,zhangbo127/CodeIgniter,dotancohen/CodeIgniter,kukuhsetiawan/CodeIgniter,avenirer/CodeIgniter,gastongr/CodeIgniter,souparno/CodeIgniter,TimHuangcheng/CodeIgniter,zhangzhengyu/CodeIgniter,serpes/CodeIgniter,Husseinat/engsoft,asp7bit/trackindo,liuxulei/CodeIgniter,ftwbzhao/CodeIgniter,nandadotexe/CodeIgniter,codergma/CodeIgniter,darrelljefferson/viper,kobeuu/CodeIgniter,mewt/CodeIgniter,tianhe1986/CodeIgniter,serpes/CodeIgniter,asp7bit/trackindo,tschmidiger/CodeIgniter,poing/CodeIgniter,ytetsuro/CodeIgniter,ndigitals/CodeIgniter,antoniors/CodeIgniter,eddomirsyad/CodeIgniter,gopalindians/CodeIgniter,nadeemehsan9/CodeIgniter,fjsevillamora/CodeIgniter,globlob/CodeIgniter,lucasfong/CodeIgniter,ipabz/CodeIgniter,ytetsuro/CodeIgniter,kobeuu/CodeIgniter,lonnieezell/CodeIgniter,sebastienadam/CodeIgniter,usbader/QuizApp,asaharan/skillscroll,doniisetiiawan/CodeIgniter,rootcss/CodeIgniter,acepsaepudin/traffic-infrastructure-app,zoaked/CodeIgniter,antoniors/CodeIgniter,ndigitals/CodeIgniter,tieutumathi/CodeIgniterM,netsan/CodeIgniter-Research,gt945/CodeIgniter,dimaspermadiyp/CodeIgniter,sampoyigi/CodeIgniter,netsan/CodeIgniter-Research,asaharan/skillscroll,faregon/CodeIgniter,Neoskate/CodeIgniter,stevebritton/CodeIgniter,vrkansagara/CodeIgniter,namnv609/CodeIgniter,aryan-2016/CodeIgniter,chinatown34/ci_bind_wrap,stevebritton/CodeIgniter,butane/CodeIgniter,faozimipa/CodeIgniter,megaspy/rental,nonconforme/CodeIgniter,KIGOTHO/CodeIgniter,JungMinu/CodeIgniter,runphp/CodeIgniter,trinet-at/CodeIgniter,MonCoder/CodeIgniter,aquarion/CodeIgniter,acepsaepudin/traffic-infrastructure-app,AndreiMariusSili/Enactus,aquasky111/CodeIgniter,andersonunsonst/CodeIgniter,zhaoyan158567/CodeIgniter,lonnieezell/CodeIgniter,ster/CodeIgniter,ET-NiK/CodeIgniter,vlakoff/CodeIgniter,zoaked/CodeIgniter,kala725/CodeIgniter-with-React,doniisetiiawan/CodeIgniter,galdiolo/CodeIgniter,nishatbaig/CodeIgniter,ajose1024/Code_Igniter_Extended,jiachenning/CodeIgniter,puhua/CodeIgniter,pkuclay/CodeIgniter,liuxulei/CodeIgniter,marimarluna/CodeIgniter-develop,serpes/CodeIgniter,alex1442/CodeIgniter,iLotus/CodeIgniter,tangposmarvin/CodeIgniter,trinet-at/CodeIgniter,DiZyStudio/ci,jellycheng/CodeIgniter,andersonunsonst/CodeIgniter,nonconforme/CodeIgniter,KmServer/CodeIgniter,aryan-2016/CodeIgniter,asmdigital/CodeIgniter,megaspy/rental,pravinhirmukhe/CodeIgniter,cgvarela/CodeIgniter,cmayo/CodeIgniter,saisai/CodeIgniter,TimHuangcheng/CodeIgniter,asmdigital/CodeIgniter,nishatbaig/CodeIgniter,jiaojie1989/CodeIgniter,globlob/CodeIgniter,ster/CodeIgniter,TimHuangcheng/CodeIgniter,kenjis/CodeIgniter,cmayo/CodeIgniter,gastongr/CodeIgniter,puhua/CodeIgniter,tieutumathi/CodeIgniterM,feryardiant/codeigniter,ajose1024/Code_Igniter_Extended,n054/CodeIgniter,dinhmv/demo,jim-parry/CodeIgniter,HindrikDeelstra/codeigniter-snackapp,daoyuly/CodeIgniter,jiaojie1989/CodeIgniter,namnv609/CodeIgniter,poing/CodeIgniter,LamarKing/CodeIgniter,dcarbone/CodeIgniter,runphp/CodeIgniter,Cediwallet/code,MjAbuz/CodeIgniter,cgvarela/CodeIgniter,ndigitals/CodeIgniter,demenvil/CodeIgniter,madnik/CodeIgniter,jellycheng/CodeIgniter,kamaslau/BasicCodeIgniter,FacundoGFlores/CodeIgniter,dimaspermadiyp/CodeIgniter,galdiolo/CodeIgniter,LamarKing/CodeIgniter,WSDC-NITWarangal/CodeIgniter,Oiro/CodeIgniter,ganiutomo/CodeIgniter,FacundoGFlores/CodeIgniter,chadzilla2080/CodeIgniter,nadeemehsan9/CodeIgniter,gastongr/CodeIgniter,shanavas786/CodeIgniter,kuaimainc/Kuaima-CodeIgniter,demenvil/CodeIgniter,puhua/CodeIgniter,dkarvounaris/CodeIgniter,mewt/CodeIgniter,dkarvounaris/CodeIgniter,runphp/CodeIgniter,rajrathore/CodeIgniter,Avantians/CodeIgniter,gopalindians/CodeIgniter,benms/CodeIgniter,faregon/CodeIgniter,tschmidiger/CodeIgniter,madnik/CodeIgniter,benms/CodeIgniter,titounnes/CodeIgniter,n054/CodeIgniter,jim-parry/CodeIgniter