Fix README.txt reference in CMakeLists.txt - it's now Markdown.
Fix README.txt reference in CMakeLists.txt - it's now Markdown.

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