Revert "docs/StringDesign: remove a paragraph about a deviation from Unicode in"
Revert "docs/StringDesign: remove a paragraph about a deviation from Unicode in"

This reverts r19396.

Swift SVN r19400

dduan/swift,deyton/swift,sschiau/swift,karwa/swift,adrfer/swift,tjw/swift,roambotics/swift,kstaring/swift,frootloops/swift,xwu/swift,adrfer/swift,jtbandes/swift,brentdax/swift,IngmarStein/swift,parkera/swift,lorentey/swift,brentdax/swift,khizkhiz/swift,alblue/swift,arvedviehweger/swift,natecook1000/swift,modocache/swift,aschwaighofer/swift,danielmartin/swift,brentdax/swift,gmilos/swift,ahoppen/swift,therealbnut/swift,OscarSwanros/swift,return/swift,return/swift,tkremenek/swift,calebd/swift,allevato/swift,xedin/swift,bitjammer/swift,jmgc/swift,sdulal/swift,calebd/swift,tkremenek/swift,gribozavr/swift,CodaFi/swift,jopamer/swift,stephentyrone/swift,lorentey/swift,kentya6/swift,sschiau/swift,tjw/swift,emilstahl/swift,hughbe/swift,allevato/swift,allevato/swift,alblue/swift,deyton/swift,uasys/swift,ben-ng/swift,roambotics/swift,slavapestov/swift,djwbrown/swift,Jnosh/swift,Jnosh/swift,xedin/swift,gribozavr/swift,apple/swift,ben-ng/swift,djwbrown/swift,practicalswift/swift,milseman/swift,benlangmuir/swift,johnno1962d/swift,kstaring/swift,glessard/swift,Jnosh/swift,Ivacker/swift,arvedviehweger/swift,tardieu/swift,IngmarStein/swift,emilstahl/swift,glessard/swift,aschwaighofer/swift,swiftix/swift.old,austinzheng/swift,uasys/swift,mightydeveloper/swift,JaSpa/swift,russbishop/swift,karwa/swift,therealbnut/swift,felix91gr/swift,lorentey/swift,cbrentharris/swift,xedin/swift,deyton/swift,tardieu/swift,adrfer/swift,karwa/swift,arvedviehweger/swift,sschiau/swift,lorentey/swift,rudkx/swift,apple/swift,aschwaighofer/swift,swiftix/swift,tinysun212/swift-windows,LeoShimonaka/swift,shajrawi/swift,nathawes/swift,kperryua/swift,huonw/swift,rudkx/swift,practicalswift/swift,danielmartin/swift,LeoShimonaka/swift,jopamer/swift,danielmartin/swift,swiftix/swift.old,frootloops/swift,return/swift,austinzheng/swift,sschiau/swift,hooman/swift,danielmartin/swift,ken0nek/swift,devincoughlin/swift,devincoughlin/swift,CodaFi/swift,aschwaighofer/swift,dreamsxin/swift,emilstahl/swift,kperryua/swift,natecook1000/swift,tardieu/swift,ben-ng/swift,harlanhaskins/swift,tinysun212/swift-windows,airspeedswift/swift,jtbandes/swift,OscarSwanros/swift,stephentyrone/swift,stephentyrone/swift,modocache/swift,gottesmm/swift,OscarSwanros/swift,dduan/swift,adrfer/swift,Ivacker/swift,devincoughlin/swift,milseman/swift,mightydeveloper/swift,IngmarStein/swift,natecook1000/swift,karwa/swift,return/swift,gregomni/swift,xedin/swift,modocache/swift,ken0nek/swift,therealbnut/swift,amraboelela/swift,sdulal/swift,hughbe/swift,emilstahl/swift,uasys/swift,kperryua/swift,harlanhaskins/swift,IngmarStein/swift,zisko/swift,codestergit/swift,jtbandes/swift,arvedviehweger/swift,KrishMunot/swift,devincoughlin/swift,MukeshKumarS/Swift,SwiftAndroid/swift,sschiau/swift,gmilos/swift,adrfer/swift,deyton/swift,uasys/swift,natecook1000/swift,JaSpa/swift,alblue/swift,harlanhaskins/swift,modocache/swift,emilstahl/swift,frootloops/swift,brentdax/swift,sdulal/swift,gottesmm/swift,amraboelela/swift,emilstahl/swift,nathawes/swift,danielmartin/swift,atrick/swift,shahmishal/swift,practicalswift/swift,dduan/swift,atrick/swift,shajrawi/swift,djwbrown/swift,ken0nek/swift,parkera/swift,swiftix/swift,hooman/swift,kusl/swift,lorentey/swift,harlanhaskins/swift,zisko/swift,Ivacker/swift,sdulal/swift,zisko/swift,mightydeveloper/swift,huonw/swift,hooman/swift,jckarter/swift,swiftix/swift.old,Ivacker/swift,deyton/swift,dduan/swift,slavapestov/swift,amraboelela/swift,OscarSwanros/swift,gribozavr/swift,milseman/swift,kusl/swift,shahmishal/swift,gmilos/swift,devincoughlin/swift,felix91gr/swift,JGiola/swift,calebd/swift,djwbrown/swift,djwbrown/swift,brentdax/swift,MukeshKumarS/Swift,ahoppen/swift,jopamer/swift,xedin/swift,Jnosh/swift,codestergit/swift,russbishop/swift,jopamer/swift,deyton/swift,natecook1000/swift,parkera/swift,gregomni/swift,dreamsxin/swift,devincoughlin/swift,codestergit/swift,apple/swift,natecook1000/swift,frootloops/swift,bitjammer/swift,emilstahl/swift,shahmishal/swift,frootloops/swift,nathawes/swift,tjw/swift,IngmarStein/swift,modocache/swift,slavapestov/swift,sschiau/swift,xwu/swift,calebd/swift,johnno1962d/swift,sdulal/swift,swiftix/swift.old,brentdax/swift,gmilos/swift,cbrentharris/swift,benlangmuir/swift,kentya6/swift,MukeshKumarS/Swift,devincoughlin/swift,johnno1962d/swift,zisko/swift,SwiftAndroid/swift,karwa/swift,rudkx/swift,CodaFi/swift,modocache/swift,jopamer/swift,cbrentharris/swift,swiftix/swift,khizkhiz/swift,kusl/swift,tjw/swift,tinysun212/swift-windows,hughbe/swift,gribozavr/swift,calebd/swift,tjw/swift,danielmartin/swift,kperryua/swift,karwa/swift,roambotics/swift,amraboelela/swift,jmgc/swift,jckarter/swift,practicalswift/swift,slavapestov/swift,rudkx/swift,frootloops/swift,adrfer/swift,codestergit/swift,gribozavr/swift,sdulal/swift,calebd/swift,gottesmm/swift,jckarter/swift,jckarter/swift,ahoppen/swift,allevato/swift,manavgabhawala/swift,practicalswift/swift,swiftix/swift.old,Jnosh/swift,Ivacker/swift,JaSpa/swift,practicalswift/swift,allevato/swift,parkera/swift,jtbandes/swift,tinysun212/swift-windows,felix91gr/swift,kentya6/swift,jmgc/swift,SwiftAndroid/swift,ben-ng/swift,slavapestov/swift,austinzheng/swift,stephentyrone/swift,roambotics/swift,slavapestov/swift,KrishMunot/swift,kusl/swift,ken0nek/swift,ken0nek/swift,KrishMunot/swift,harlanhaskins/swift,parkera/swift,apple/swift,johnno1962d/swift,khizkhiz/swift,sdulal/swift,ken0nek/swift,danielmartin/swift,brentdax/swift,OscarSwanros/swift,atrick/swift,tardieu/swift,tardieu/swift,jtbandes/swift,roambotics/swift,jmgc/swift,lorentey/swift,airspeedswift/swift,codestergit/swift,khizkhiz/swift,hooman/swift,swiftix/swift.old,allevato/swift,hooman/swift,djwbrown/swift,swiftix/swift,dduan/swift,felix91gr/swift,alblue/swift,shajrawi/swift,alblue/swift,OscarSwanros/swift,uasys/swift,gregomni/swift,khizkhiz/swift,cbrentharris/swift,amraboelela/swift,kstaring/swift,xedin/swift,bitjammer/swift,natecook1000/swift,swiftix/swift,benlangmuir/swift,hooman/swift,kstaring/swift,gregomni/swift,atrick/swift,IngmarStein/swift,tjw/swift,sschiau/swift,return/swift,huonw/swift,manavgabhawala/swift,gottesmm/swift,stephentyrone/swift,kentya6/swift,arvedviehweger/swift,kstaring/swift,zisko/swift,LeoShimonaka/swift,MukeshKumarS/Swift,xedin/swift,codestergit/swift,KrishMunot/swift,shahmishal/swift,swiftix/swift.old,russbishop/swift,sschiau/swift,xwu/swift,jmgc/swift,kentya6/swift,khizkhiz/swift,xwu/swift,gregomni/swift,allevato/swift,gregomni/swift,ahoppen/swift,cbrentharris/swift,ahoppen/swift,OscarSwanros/swift,dduan/swift,SwiftAndroid/swift,austinzheng/swift,russbishop/swift,benlangmuir/swift,kusl/swift,hughbe/swift,gribozavr/swift,adrfer/swift,Ivacker/swift,milseman/swift,djwbrown/swift,kstaring/swift,kusl/swift,Ivacker/swift,frootloops/swift,stephentyrone/swift,shahmishal/swift,huonw/swift,JaSpa/swift,gribozavr/swift,rudkx/swift,Jnosh/swift,parkera/swift,CodaFi/swift,hughbe/swift,JGiola/swift,codestergit/swift,gmilos/swift,JGiola/swift,johnno1962d/swift,gmilos/swift,airspeedswift/swift,uasys/swift,tinysun212/swift-windows,bitjammer/swift,cbrentharris/swift,jmgc/swift,aschwaighofer/swift,huonw/swift,manavgabhawala/swift,deyton/swift,russbishop/swift,emilstahl/swift,cbrentharris/swift,airspeedswift/swift,jtbandes/swift,amraboelela/swift,gottesmm/swift,lorentey/swift,kperryua/swift,lorentey/swift,JGiola/swift,parkera/swift,JaSpa/swift,xwu/swift,swiftix/swift,mightydeveloper/swift,gottesmm/swift,ken0nek/swift,benlangmuir/swift,ahoppen/swift,tardieu/swift,apple/swift,ben-ng/swift,practicalswift/swift,airspeedswift/swift,hooman/swift,rudkx/swift,xwu/swift,glessard/swift,MukeshKumarS/Swift,bitjammer/swift,KrishMunot/swift,practicalswift/swift,mightydeveloper/swift,SwiftAndroid/swift,austinzheng/swift,russbishop/swift,LeoShimonaka/swift,JaSpa/swift,JGiola/swift,kperryua/swift,mightydeveloper/swift,tinysun212/swift-windows,LeoShimonaka/swift,tkremenek/swift,jtbandes/swift,CodaFi/swift,karwa/swift,dduan/swift,tkremenek/swift,arvedviehweger/swift,kstaring/swift,zisko/swift,bitjammer/swift,kentya6/swift,tinysun212/swift-windows,shajrawi/swift,IngmarStein/swift,return/swift,apple/swift,shajrawi/swift,LeoShimonaka/swift,milseman/swift,xedin/swift,return/swift,alblue/swift,shajrawi/swift,therealbnut/swift,shajrawi/swift,felix91gr/swift,felix91gr/swift,shahmishal/swift,JaSpa/swift,hughbe/swift,airspeedswift/swift,roambotics/swift,manavgabhawala/swift,xwu/swift,benlangmuir/swift,nathawes/swift,jckarter/swift,LeoShimonaka/swift,LeoShimonaka/swift,johnno1962d/swift,MukeshKumarS/Swift,kusl/swift,shahmishal/swift,jckarter/swift,tkremenek/swift,CodaFi/swift,KrishMunot/swift,uasys/swift,tjw/swift,tkremenek/swift,kusl/swift,milseman/swift,slavapestov/swift,huonw/swift,Ivacker/swift,SwiftAndroid/swift,tkremenek/swift,cbrentharris/swift,KrishMunot/swift,shahmishal/swift,jmgc/swift,gmilos/swift,MukeshKumarS/Swift,therealbnut/swift,nathawes/swift,kentya6/swift,bitjammer/swift,aschwaighofer/swift,arvedviehweger/swift,gribozavr/swift,glessard/swift,calebd/swift,johnno1962d/swift,hughbe/swift,nathawes/swift,jopamer/swift,glessard/swift,devincoughlin/swift,JGiola/swift,jckarter/swift,kperryua/swift,ben-ng/swift,CodaFi/swift,stephentyrone/swift,aschwaighofer/swift,gottesmm/swift,austinzheng/swift,airspeedswift/swift,nathawes/swift,Jnosh/swift,amraboelela/swift,khizkhiz/swift,kentya6/swift,therealbnut/swift,mightydeveloper/swift,SwiftAndroid/swift,zisko/swift,ben-ng/swift,parkera/swift,austinzheng/swift,manavgabhawala/swift,manavgabhawala/swift,mightydeveloper/swift,modocache/swift,atrick/swift,manavgabhawala/swift,huonw/swift,swiftix/swift.old,harlanhaskins/swift,glessard/swift,shajrawi/swift,jopamer/swift,atrick/swift,sdulal/swift,tardieu/swift,felix91gr/swift,milseman/swift,therealbnut/swift,russbishop/swift,alblue/swift,karwa/swift,harlanhaskins/swift,swiftix/swift