Update TRANSITION.md
Update TRANSITION.md

Added some clarification around ActiveModelSerializer terminology.
heathharrelson/data,FinSync/ember-data,sammcgrail/data,usecanvas/data,gabriel-letarte/data,swarmbox/data,flowjzh/data,stefanpenner/data,eriktrom/data,Robdel12/data,minasmart/data,kappiah/data,arenoir/data,tarzan/data,funtusov/data,H1D/data,davidpett/data,kappiah/data,FinSync/ember-data,topaxi/data,hibariya/data,dustinfarris/data,pdud/data,yaymukund/data,in4mates/ember-data,lostinpatterns/data,InboxHealth/data,HeroicEric/data,Eric-Guo/data,usecanvas/data,rtablada/data,thaume/data,usecanvas/data,bf4/data,jmurphyau/data,tstirrat/ember-data,sebastianseilund/data,sebweaver/data,swarmbox/data,sammcgrail/data,sebweaver/data,intuitivepixel/data,k-fish/data,splattne/data,sebastianseilund/data,whatthewhat/data,wecc/data,danmcclain/data,jmurphyau/data,gkaran/data,heathharrelson/data,greyhwndz/data,faizaanshamsi/data,Turbo87/ember-data,bcardarella/data,davidpett/data,FinSync/ember-data,jgwhite/data,lostinpatterns/data,BookingSync/data,k-fish/data,bcardarella/data,knownasilya/data,gabriel-letarte/data,webPapaya/data,Robdel12/data,minasmart/data,HeroicEric/data,Turbo87/ember-data,XrXr/data,H1D/data,InboxHealth/data,danmcclain/data,funtusov/data,BookingSync/data,simaob/data,thaume/data,yaymukund/data,jmurphyau/data,lostinpatterns/data,dustinfarris/data,funtusov/data,mphasize/data,flowjzh/data,faizaanshamsi/data,Addepar/ember-data,whatthewhat/data,sammcgrail/data,in4mates/ember-data,simaob/data,XrXr/data,seanpdoyle/data,seanpdoyle/data,duggiefresh/data,tarzan/data,BBLN/data,Robdel12/data,fsmanuel/data,slindberg/data,tstirrat/ember-data,stefanpenner/data,wecc/data,sebastianseilund/data,pdud/data,simaob/data,in4mates/ember-data,gniquil/data,tstirrat/ember-data,EmberSherpa/data,BBLN/data,PrecisionNutrition/data,yaymukund/data,seanpdoyle/data,tonywok/data,tonywok/data,dustinfarris/data,nickiaconis/data,arenoir/data,swarmbox/data,Robdel12/data,Eric-Guo/data,tarzan/data,workmanw/data,andrejunges/data,vikram7/data,flowjzh/data,wecc/data,ryanpatrickcook/data,ryanpatrickcook/data,mphasize/data,tstirrat/ember-data,davidpett/data,flowjzh/data,dustinfarris/data,arenoir/data,Turbo87/ember-data,fpauser/data,trisrael/em-data,knownasilya/data,workmanw/data,slindberg/data,gabriel-letarte/data,XrXr/data,webPapaya/data,jgwhite/data,acburdine/data,courajs/data,fsmanuel/data,funtusov/data,nickiaconis/data,stefanpenner/data,FinSync/ember-data,HeroicEric/data,andrejunges/data,gniquil/data,Eric-Guo/data,k-fish/data,slindberg/data,offirgolan/data,fpauser/data,webPapaya/data,ryanpatrickcook/data,offirgolan/data,H1D/data,heathharrelson/data,kappiah/data,zoeesilcock/data,minasmart/data,mphasize/data,knownasilya/data,BBLN/data,kimroen/data,duggiefresh/data,duggiefresh/data,nickiaconis/data,PrecisionNutrition/data,Kuzirashi/data,nickiaconis/data,sammcgrail/data,rtablada/data,gkaran/data,kimroen/data,arenoir/data,rtablada/data,eriktrom/data,whatthewhat/data,InboxHealth/data,martndemus/data,lostinpatterns/data,martndemus/data,courajs/data,Addepar/ember-data,pdud/data,zoeesilcock/data,jmurphyau/data,gabriel-letarte/data,intuitivepixel/data,acburdine/data,swarmbox/data,hibariya/data,acburdine/data,jgwhite/data,vikram7/data,tonywok/data,andrejunges/data,trisrael/em-data,PrecisionNutrition/data,webPapaya/data,Kuzirashi/data,courajs/data,InboxHealth/data,danmcclain/data,greyhwndz/data,sebastianseilund/data,eriktrom/data,trisrael/em-data,zoeesilcock/data,HeroicEric/data,Addepar/ember-data,Kuzirashi/data,BBLN/data,faizaanshamsi/data,Turbo87/ember-data,H1D/data,hibariya/data,EmberSherpa/data,intuitivepixel/data,rtablada/data,fpauser/data,sebweaver/data,workmanw/data,BookingSync/data,PrecisionNutrition/data,jgwhite/data,heathharrelson/data,zoeesilcock/data,tarzan/data,BookingSync/data,fsmanuel/data,martndemus/data,bf4/data,Kuzirashi/data,gkaran/data,splattne/data,bf4/data,vikram7/data,pdud/data,faizaanshamsi/data,usecanvas/data,topaxi/data,EmberSherpa/data,greyhwndz/data,andrejunges/data,k-fish/data,splattne/data,yaymukund/data,fpauser/data,stefanpenner/data,gniquil/data,tonywok/data,danmcclain/data,workmanw/data,mphasize/data,wecc/data,bcardarella/data,thaume/data,sebweaver/data,kimroen/data,splattne/data,seanpdoyle/data,fsmanuel/data,martndemus/data,gkaran/data,EmberSherpa/data,gniquil/data,simaob/data,offirgolan/data,kappiah/data,courajs/data,offirgolan/data,hibariya/data,vikram7/data,ryanpatrickcook/data,davidpett/data,eriktrom/data,thaume/data,minasmart/data,Eric-Guo/data,greyhwndz/data,XrXr/data,bf4/data,duggiefresh/data,bcardarella/data,intuitivepixel/data,topaxi/data,acburdine/data,whatthewhat/data,topaxi/data