[docs][arc] Expand the section on RC identity and change the organization to make more sense given multiple documentation sections.
[docs][arc] Expand the section on RC identity and change the organization to make more sense given multiple documentation sections.

danielmartin/swift,tjw/swift,atrick/swift,arvedviehweger/swift,modocache/swift,jopamer/swift,JaSpa/swift,kperryua/swift,tinysun212/swift-windows,glessard/swift,jckarter/swift,johnno1962d/swift,djwbrown/swift,practicalswift/swift,harlanhaskins/swift,rudkx/swift,swiftix/swift,tkremenek/swift,amraboelela/swift,kstaring/swift,alblue/swift,tinysun212/swift-windows,jmgc/swift,zisko/swift,xwu/swift,roambotics/swift,arvedviehweger/swift,sschiau/swift,jckarter/swift,felix91gr/swift,gottesmm/swift,calebd/swift,ahoppen/swift,hughbe/swift,atrick/swift,milseman/swift,hooman/swift,swiftix/swift,russbishop/swift,manavgabhawala/swift,stephentyrone/swift,CodaFi/swift,glessard/swift,austinzheng/swift,manavgabhawala/swift,djwbrown/swift,aschwaighofer/swift,xedin/swift,shahmishal/swift,xedin/swift,kstaring/swift,ken0nek/swift,benlangmuir/swift,parkera/swift,dduan/swift,uasys/swift,harlanhaskins/swift,return/swift,russbishop/swift,johnno1962d/swift,deyton/swift,codestergit/swift,devincoughlin/swift,atrick/swift,OscarSwanros/swift,dduan/swift,JGiola/swift,johnno1962d/swift,deyton/swift,stephentyrone/swift,JaSpa/swift,ken0nek/swift,shajrawi/swift,gregomni/swift,kstaring/swift,manavgabhawala/swift,frootloops/swift,SwiftAndroid/swift,arvedviehweger/swift,kperryua/swift,milseman/swift,karwa/swift,stephentyrone/swift,karwa/swift,gribozavr/swift,arvedviehweger/swift,amraboelela/swift,xedin/swift,hooman/swift,allevato/swift,austinzheng/swift,IngmarStein/swift,JaSpa/swift,uasys/swift,IngmarStein/swift,practicalswift/swift,tjw/swift,ahoppen/swift,jtbandes/swift,allevato/swift,parkera/swift,glessard/swift,frootloops/swift,lorentey/swift,bitjammer/swift,CodaFi/swift,deyton/swift,tardieu/swift,alblue/swift,hughbe/swift,Jnosh/swift,calebd/swift,JGiola/swift,kperryua/swift,gregomni/swift,karwa/swift,natecook1000/swift,alblue/swift,codestergit/swift,ben-ng/swift,KrishMunot/swift,airspeedswift/swift,milseman/swift,dreamsxin/swift,djwbrown/swift,apple/swift,parkera/swift,therealbnut/swift,Jnosh/swift,stephentyrone/swift,Jnosh/swift,OscarSwanros/swift,austinzheng/swift,manavgabhawala/swift,SwiftAndroid/swift,harlanhaskins/swift,djwbrown/swift,SwiftAndroid/swift,gmilos/swift,modocache/swift,brentdax/swift,return/swift,therealbnut/swift,swiftix/swift,roambotics/swift,rudkx/swift,shajrawi/swift,xwu/swift,codestergit/swift,sschiau/swift,tinysun212/swift-windows,OscarSwanros/swift,jckarter/swift,JaSpa/swift,felix91gr/swift,OscarSwanros/swift,apple/swift,jmgc/swift,KrishMunot/swift,jopamer/swift,sschiau/swift,huonw/swift,lorentey/swift,aschwaighofer/swift,arvedviehweger/swift,amraboelela/swift,tjw/swift,KrishMunot/swift,return/swift,shajrawi/swift,kperryua/swift,roambotics/swift,jckarter/swift,swiftix/swift,swiftix/swift,karwa/swift,aschwaighofer/swift,xwu/swift,codestergit/swift,alblue/swift,rudkx/swift,tkremenek/swift,OscarSwanros/swift,shajrawi/swift,stephentyrone/swift,parkera/swift,modocache/swift,huonw/swift,natecook1000/swift,karwa/swift,allevato/swift,bitjammer/swift,practicalswift/swift,KrishMunot/swift,arvedviehweger/swift,aschwaighofer/swift,danielmartin/swift,frootloops/swift,zisko/swift,benlangmuir/swift,lorentey/swift,xedin/swift,jmgc/swift,alblue/swift,shahmishal/swift,IngmarStein/swift,KrishMunot/swift,amraboelela/swift,gregomni/swift,codestergit/swift,danielmartin/swift,jmgc/swift,ken0nek/swift,hooman/swift,glessard/swift,calebd/swift,nathawes/swift,huonw/swift,OscarSwanros/swift,kperryua/swift,kperryua/swift,hooman/swift,harlanhaskins/swift,jckarter/swift,jckarter/swift,tkremenek/swift,gottesmm/swift,shajrawi/swift,lorentey/swift,tjw/swift,amraboelela/swift,gregomni/swift,parkera/swift,sschiau/swift,danielmartin/swift,jtbandes/swift,tardieu/swift,jtbandes/swift,calebd/swift,modocache/swift,tinysun212/swift-windows,CodaFi/swift,SwiftAndroid/swift,devincoughlin/swift,ben-ng/swift,gottesmm/swift,JGiola/swift,airspeedswift/swift,milseman/swift,CodaFi/swift,frootloops/swift,ben-ng/swift,johnno1962d/swift,russbishop/swift,aschwaighofer/swift,CodaFi/swift,jmgc/swift,natecook1000/swift,parkera/swift,hughbe/swift,gmilos/swift,dduan/swift,tardieu/swift,gmilos/swift,allevato/swift,deyton/swift,Jnosh/swift,apple/swift,huonw/swift,gribozavr/swift,ben-ng/swift,ahoppen/swift,CodaFi/swift,felix91gr/swift,hooman/swift,JGiola/swift,shahmishal/swift,apple/swift,xwu/swift,Jnosh/swift,airspeedswift/swift,dduan/swift,benlangmuir/swift,brentdax/swift,practicalswift/swift,sschiau/swift,roambotics/swift,ben-ng/swift,return/swift,SwiftAndroid/swift,manavgabhawala/swift,arvedviehweger/swift,return/swift,austinzheng/swift,gribozavr/swift,tardieu/swift,zisko/swift,Jnosh/swift,dduan/swift,devincoughlin/swift,alblue/swift,apple/swift,hughbe/swift,airspeedswift/swift,xwu/swift,bitjammer/swift,zisko/swift,lorentey/swift,danielmartin/swift,ben-ng/swift,gribozavr/swift,practicalswift/swift,gottesmm/swift,devincoughlin/swift,kstaring/swift,milseman/swift,tardieu/swift,felix91gr/swift,jtbandes/swift,gribozavr/swift,OscarSwanros/swift,therealbnut/swift,ben-ng/swift,gribozavr/swift,rudkx/swift,tardieu/swift,shajrawi/swift,tkremenek/swift,xedin/swift,glessard/swift,uasys/swift,devincoughlin/swift,benlangmuir/swift,calebd/swift,jopamer/swift,atrick/swift,rudkx/swift,swiftix/swift,amraboelela/swift,therealbnut/swift,jmgc/swift,xwu/swift,devincoughlin/swift,xedin/swift,uasys/swift,roambotics/swift,tjw/swift,lorentey/swift,shajrawi/swift,lorentey/swift,shahmishal/swift,felix91gr/swift,danielmartin/swift,ahoppen/swift,jtbandes/swift,IngmarStein/swift,brentdax/swift,KrishMunot/swift,codestergit/swift,gmilos/swift,austinzheng/swift,modocache/swift,gribozavr/swift,ahoppen/swift,Jnosh/swift,bitjammer/swift,shahmishal/swift,hooman/swift,shahmishal/swift,gmilos/swift,deyton/swift,russbishop/swift,russbishop/swift,tkremenek/swift,brentdax/swift,russbishop/swift,milseman/swift,JaSpa/swift,johnno1962d/swift,ken0nek/swift,atrick/swift,frootloops/swift,bitjammer/swift,deyton/swift,return/swift,brentdax/swift,amraboelela/swift,practicalswift/swift,IngmarStein/swift,swiftix/swift,milseman/swift,gottesmm/swift,SwiftAndroid/swift,gmilos/swift,ahoppen/swift,calebd/swift,huonw/swift,natecook1000/swift,zisko/swift,austinzheng/swift,shahmishal/swift,nathawes/swift,jtbandes/swift,sschiau/swift,huonw/swift,practicalswift/swift,dduan/swift,shahmishal/swift,gottesmm/swift,JGiola/swift,tinysun212/swift-windows,KrishMunot/swift,IngmarStein/swift,practicalswift/swift,airspeedswift/swift,jopamer/swift,parkera/swift,kstaring/swift,nathawes/swift,gribozavr/swift,uasys/swift,johnno1962d/swift,hughbe/swift,harlanhaskins/swift,stephentyrone/swift,modocache/swift,uasys/swift,huonw/swift,johnno1962d/swift,jopamer/swift,felix91gr/swift,xedin/swift,roambotics/swift,frootloops/swift,nathawes/swift,brentdax/swift,brentdax/swift,devincoughlin/swift,austinzheng/swift,zisko/swift,allevato/swift,ken0nek/swift,uasys/swift,allevato/swift,karwa/swift,jckarter/swift,CodaFi/swift,harlanhaskins/swift,gregomni/swift,gottesmm/swift,manavgabhawala/swift,jmgc/swift,gregomni/swift,stephentyrone/swift,rudkx/swift,therealbnut/swift,nathawes/swift,sschiau/swift,xwu/swift,tjw/swift,frootloops/swift,nathawes/swift,jopamer/swift,ken0nek/swift,JaSpa/swift,bitjammer/swift,russbishop/swift,kstaring/swift,karwa/swift,lorentey/swift,JGiola/swift,hughbe/swift,jopamer/swift,natecook1000/swift,therealbnut/swift,therealbnut/swift,modocache/swift,dreamsxin/swift,felix91gr/swift,hughbe/swift,airspeedswift/swift,benlangmuir/swift,djwbrown/swift,sschiau/swift,hooman/swift,shajrawi/swift,manavgabhawala/swift,parkera/swift,djwbrown/swift,codestergit/swift,natecook1000/swift,alblue/swift,harlanhaskins/swift,aschwaighofer/swift,tkremenek/swift,tinysun212/swift-windows,bitjammer/swift,jtbandes/swift,airspeedswift/swift,xedin/swift,tkremenek/swift,tjw/swift,devincoughlin/swift,kstaring/swift,IngmarStein/swift,gmilos/swift,allevato/swift,deyton/swift,karwa/swift,zisko/swift,calebd/swift,JaSpa/swift,natecook1000/swift,glessard/swift,tardieu/swift,benlangmuir/swift,atrick/swift,nathawes/swift,aschwaighofer/swift,danielmartin/swift,ken0nek/swift,tinysun212/swift-windows,apple/swift,SwiftAndroid/swift,djwbrown/swift,return/swift,dduan/swift,kperryua/swift