Update 0-installation.md
Update 0-installation.md

I think it's better to state it (I did spend some time on this :( )
danielevans/activeadmin,mynksngh/activeadmin,bloomrain/activeadmin,samvincent/active_admin,jethroo/activeadmin,vytenis-s/activeadmin,presskey/activeadmin,sanyaade-iot/activeadmin,rubixware/activeadmin,quikly/active_admin,Skulli/activeadmin,siutin/activeadmin,strivedi183/activeadmin,vraravam/activeadmin,chrisseldo/activeadmin,rtrepo/activeadmin,rubixware/activeadmin,lampo/activeadmin,totzyuta/activeadmin,saiqulhaq/activeadmin,zfben/activeadmin,javierjulio/activeadmin,MohamedHegab/activeadmin,mateusg/active_admin,activeadmin/activeadmin,bcavileer/activeadmin,krautcomputing/activeadmin,scarver2/activeadmin,presskey/activeadmin,saveav/activeadmin,applexiaohao/activeadmin,varyonic/activeadmin,alonerage/activeadmin,zfben/activeadmin,applexiaohao/activeadmin,senid231/activeadmin,sharma1nitish/activeadmin,timoschilling/activeadmin,Ibotta/activeadmin,Ibotta/activeadmin,applexiaohao/activeadmin,deivid-rodriguez/activeadmin,Pollywog23/activeadmin,hiroponz/activeadmin,saveav/activeadmin,quikly/active_admin,buren/activeadmin,hiroponz/activeadmin,getkiwicom/activeadmin,bloomrain/activeadmin,dalegregory/activeadmin,maysam/activeadmin,Some1Else/activeadmin,mateusg/active_admin,sanyaade-iot/activeadmin,shishir127/activeadmin,Amandeepsinghghai/activeadmin,Ryohu/activeadmin,mediebruket/activeadmin,Ibotta/activeadmin,activeadmin/activeadmin,vytenis-s/activeadmin,dalegregory/activeadmin,sanyaade-iot/activeadmin,krautcomputing/activeadmin,iguchi1124/activeadmin,ishumilova/activeadmin,dhartoto/activeadmin,chdem/activeadmin,Skulli/activeadmin,deivid-rodriguez/activeadmin,javierjulio/activeadmin,JeffreyATW/activeadmin,ampinog/activeadmin,hiroponz/activeadmin,ampinog/activeadmin,SoftSwiss/active_admin,chrisseldo/activeadmin,getkiwicom/activeadmin,bloomrain/activeadmin,shishir127/activeadmin,yeti-switch/active_admin,seanski/activeadmin,whatcould/active_admin,adibsaad/activeadmin,JeffreyATW/activeadmin,jclay/active_admin,totzyuta/activeadmin,yijiasu/activeadmin,beyondthestory/activeadmin,davydovanton/activeadmin,Ryohu/activeadmin,FundingGates/activeadmin,buren/activeadmin,tf/activeadmin,rtrepo/activeadmin,vraravam/activeadmin,thomascarterx/activeadmin,rtrepo/activeadmin,mauriciopasquier/active_admin,tf/activeadmin,MohamedHegab/activeadmin,artofhuman/activeadmin,Andrekra/activeadmin,mwlang/active_admin,iguchi1124/activeadmin,zfben/activeadmin,seanski/activeadmin,samvincent/active_admin,mwlang/active_admin,chdem/activeadmin,mohitnatoo/activeadmin,Davidzhu001/activeadmin,scarver2/activeadmin,chrisseldo/activeadmin,whatcould/active_admin,varyonic/activeadmin,cmunozgar/activeadmin,JeffreyATW/activeadmin,quikly/active_admin,iuriandreazza/activeadmin,yeti-switch/active_admin,iuriandreazza/activeadmin,Amandeepsinghghai/activeadmin,saiqulhaq/activeadmin,lampo/activeadmin,adibsaad/activeadmin,gogovan/activeadmin,rubixware/activeadmin,tjgrathwell/activeadmin,mediebruket/activeadmin,samvincent/active_admin,presskey/activeadmin,javierjulio/activeadmin,strivedi183/activeadmin,mateusg/active_admin,bolshakov/activeadmin,getkiwicom/activeadmin,beyondthestory/activeadmin,waymondo/active_admin,waymondo/active_admin,artofhuman/activeadmin,jclay/active_admin,mwlang/active_admin,gogovan/activeadmin,hobbes37/activeadmin,halilim/activeadmin,ishumilova/activeadmin,whatcould/active_admin,dhartoto/activeadmin,yeti-switch/active_admin,keichan34/active_admin,Pollywog23/activeadmin,lampo/activeadmin,saveav/activeadmin,mynksngh/activeadmin,mauriciopasquier/active_admin,dalegregory/activeadmin,westonplatter/activeadmin,dannyshafer/activeadmin,alonerage/activeadmin,jethroo/activeadmin,FundingGates/activeadmin,siutin/activeadmin,bolshakov/activeadmin,westonplatter/activeadmin,mrjman/activeadmin,hobbes37/activeadmin,thomascarterx/activeadmin,thomascarterx/activeadmin,davydovanton/activeadmin,strivedi183/activeadmin,FundingGates/activeadmin,Amandeepsinghghai/activeadmin,Ryohu/activeadmin,MohamedHegab/activeadmin,tjgrathwell/activeadmin,buren/activeadmin,h2ocube/active_admin,iuriandreazza/activeadmin,temochka-test/activeadmin,mynksngh/activeadmin,dannyshafer/activeadmin,wspurgin/activeadmin,Pollywog23/activeadmin,temochka-test/activeadmin,danielevans/activeadmin,wspurgin/activeadmin,vraravam/activeadmin,mediebruket/activeadmin,activeadmin/activeadmin,iuriandreazza/activeadmin,maysam/activeadmin,SoftSwiss/active_admin,saiqulhaq/activeadmin,hyperoslo/activeadmin,Davidzhu001/activeadmin,yijiasu/activeadmin,dannyshafer/activeadmin,temochka-test/activeadmin,artofhuman/activeadmin,h2ocube/active_admin,Some1Else/activeadmin,chdem/activeadmin,ishumilova/activeadmin,cmunozgar/activeadmin,halilim/activeadmin,davydovanton/activeadmin,waymondo/active_admin,seanski/activeadmin,tf/activeadmin,SoftSwiss/active_admin,jethroo/activeadmin,mrjman/activeadmin,bolshakov/activeadmin,hobbes37/activeadmin,siutin/activeadmin,adibsaad/activeadmin,Skulli/activeadmin,krautcomputing/activeadmin,deivid-rodriguez/activeadmin,senid231/activeadmin,sharma1nitish/activeadmin,jclay/active_admin,keichan34/a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