Add content doc for split plugins resource file (#3538)
Add content doc for split plugins resource file (#3538)

* Add content doc for split plugins resource file

* Fix documentation based on Devin's findings

* Add note why we're not fixing it

Jochen-A-Fuerbacher/jenkins,sathiya-mit/jenkins,patbos/jenkins,Jochen-A-Fuerbacher/jenkins,godfath3r/jenkins,rsandell/jenkins,recena/jenkins,godfath3r/jenkins,viqueen/jenkins,pjanouse/jenkins,Jochen-A-Fuerbacher/jenkins,oleg-nenashev/jenkins,godfath3r/jenkins,DanielWeber/jenkins,viqueen/jenkins,v1v/jenkins,Jochen-A-Fuerbacher/jenkins,bkmeneguello/jenkins,jenkinsci/jenkins,oleg-nenashev/jenkins,ikedam/jenkins,ikedam/jenkins,patbos/jenkins,recena/jenkins,damianszczepanik/jenkins,damianszczepanik/jenkins,viqueen/jenkins,rsandell/jenkins,viqueen/jenkins,patbos/jenkins,sathiya-mit/jenkins,v1v/jenkins,godfath3r/jenkins,batmat/jenkins,pjanouse/jenkins,MarkEWaite/jenkins,batmat/jenkins,jenkinsci/jenkins,sathiya-mit/jenkins,jenkinsci/jenkins,ikedam/jenkins,batmat/jenkins,bkmeneguello/jenkins,andresrc/jenkins,Jochen-A-Fuerbacher/jenkins,Vlatombe/jenkins,v1v/jenkins,rsandell/jenkins,rsandell/jenkins,Vlatombe/jenkins,stephenc/jenkins,v1v/jenkins,DanielWeber/jenkins,jenkinsci/jenkins,damianszczepanik/jenkins,jenkinsci/jenkins,andresrc/jenkins,stephenc/jenkins,damianszczepanik/jenkins,MarkEWaite/jenkins,Vlatombe/jenkins,jenkinsci/jenkins,v1v/jenkins,patbos/jenkins,Jochen-A-Fuerbacher/jenkins,daniel-beck/jenkins,DanielWeber/jenkins,recena/jenkins,Vlatombe/jenkins,pjanouse/jenkins,viqueen/jenkins,MarkEWaite/jenkins,recena/jenkins,daniel-beck/jenkins,MarkEWaite/jenkins,Vlatombe/jenkins,rsandell/jenkins,daniel-beck/jenkins,patbos/jenkins,stephenc/jenkins,kohsuke/hudson,batmat/jenkins,godfath3r/jenkins,v1v/jenkins,kohsuke/hudson,bkmeneguello/jenkins,bkmeneguello/jenkins,kohsuke/hudson,pjanouse/jenkins,andresrc/jenkins,pjanouse/jenkins,oleg-nenashev/jenkins,kohsuke/hudson,ikedam/jenkins,ikedam/jenkins,patbos/jenkins,daniel-beck/jenkins,kohsuke/hudson,batmat/jenkins,MarkEWaite/jenkins,ikedam/jenkins,sathiya-mit/jenkins,oleg-nenashev/jenkins,MarkEWaite/jenkins,andresrc/jenkins,oleg-nenashev/jenkins,damianszczepanik/jenkins,bkmeneguello/jenkins,oleg-nenashev/jenkins,batmat/jenkins,MarkEWaite/jenkins,stephenc/jenkins,ikedam/jenkins,v1v/jenkins,DanielWeber/jenkins,recena/jenkins,andresrc/jenkins,DanielWeber/jenkins,andresrc/jenkins,pjanouse/jenkins,kohsuke/hudson,daniel-beck/jenkins,stephenc/jenkins,andresrc/jenkins,daniel-beck/jenkins,rsandell/jenkins,jenkinsci/jenkins,jenkinsci/jenkins,daniel-beck/jenkins,godfath3r/jenkins,damianszczepanik/jenkins,sathiya-mit/jenkins,bkmeneguello/jenkins,kohsuke/hudson,pjanouse/jenkins,kohsuke/hudson,recena/jenkins,godfath3r/jenkins,daniel-beck/jenkins,batmat/jenkins,stephenc/jenkins,rsandell/jenkins,oleg-nenashev/jenkins,damianszczepanik/jenkins,recena/jenkins,sathiya-mit/jenkins,Vlatombe/jenkins,rsandell/jenkins,viqueen/jenkins,patbos/jenkins,bkmeneguello/jenkins,MarkEWaite/jenkins,viqueen/jenkins,Jochen-A-Fuerbacher/jenkins,Vlatombe/jenkins,DanielWeber/jenkins,stephenc/jenkins,ikedam/jenkins,sathiya-mit/jenkins,damianszczepanik/jenkins,DanielWeber/jenkins