[stdlib] Add flatMap example in Result.swift
[stdlib] Add flatMap example in Result.swift

stephentyrone/swift,nathawes/swift,jmgc/swift,JGiola/swift,atrick/swift,benlangmuir/swift,benlangmuir/swift,glessard/swift,jmgc/swift,atrick/swift,gregomni/swift,allevato/swift,glessard/swift,xwu/swift,airspeedswift/swift,parkera/swift,atrick/swift,benlangmuir/swift,gregomni/swift,xwu/swift,CodaFi/swift,CodaFi/swift,nathawes/swift,xwu/swift,airspeedswift/swift,nathawes/swift,airspeedswift/swift,roambotics/swift,nathawes/swift,rudkx/swift,hooman/swift,parkera/swift,allevato/swift,xwu/swift,stephentyrone/swift,roambotics/swift,tkremenek/swift,hooman/swift,stephentyrone/swift,jckarter/swift,JGiola/swift,jmgc/swift,glessard/swift,gregomni/swift,parkera/swift,tkremenek/swift,jckarter/swift,atrick/swift,JGiola/swift,CodaFi/swift,hooman/swift,benlangmuir/swift,apple/swift,JGiola/swift,roambotics/swift,parkera/swift,jmgc/swift,xwu/swift,jckarter/swift,hooman/swift,parkera/swift,glessard/swift,allevato/swift,airspeedswift/swift,parkera/swift,tkremenek/swift,glessard/swift,apple/swift,gregomni/swift,jmgc/swift,atrick/swift,xwu/swift,gregomni/swift,ahoppen/swift,rudkx/swift,allevato/swift,ahoppen/swift,tkremenek/swift,rudkx/swift,rudkx/swift,jmgc/swift,apple/swift,allevato/swift,ahoppen/swift,jckarter/swift,gregomni/swift,rudkx/swift,CodaFi/swift,CodaFi/swift,jckarter/swift,parkera/swift,glessard/swift,stephentyrone/swift,airspeedswift/swift,apple/swift,allevato/swift,parkera/swift,roambotics/swift,apple/swift,atrick/swift,xwu/swift,tkremenek/swift,ahoppen/swift,apple/swift,tkremenek/swift,benlangmuir/swift,hooman/swift,JGiola/swift,ahoppen/swift,roambotics/swift,stephentyrone/swift,airspeedswift/swift,allevato/swift,tkremenek/swift,airspeedswift/swift,hooman/swift,nathawes/swift,hooman/swift,nathawes/swift,stephentyrone/swift,stephentyrone/swift,nathawes/swift,rudkx/swift,roambotics/swift,benlangmuir/swift,CodaFi/swift,ahoppen/swift,jmgc/swift,jckarter/swift,jckarter/swift,JGiola/swift,CodaFi/swift