Add a small section on ARC optimization and enums. It should be expanded more in the future.
Add a small section on ARC optimization and enums. It should be expanded more in the future.

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