Add README.md to the xcode project

Author: Mike Ferris

Foundation.xcodeproj/project.pbxproj

@@ -765,6 +765,7 @@
 		90E645DE1E4C89A400D0D47C /* TestNSCache.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = TestNSCache.swift; sourceTree = "<group>"; };
 		A5A34B551C18C85D00FD972B /* TestNSByteCountFormatter.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = TestNSByteCountFormatter.swift; sourceTree = "<group>"; };
 		AE35A1851CBAC85E0042DB84 /* SwiftFoundation.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = SwiftFoundation.h; sourceTree = "<group>"; };
+		B167A6641ED7303F0040B09A /* README.md */ = {isa = PBXFileReference; lastKnownFileType = net.daringfireball.markdown; path = README.md; sourceTree = "<group>"; };
 		BD8042151E09857800487EB8 /* TestNSLengthFormatter.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = TestNSLengthFormatter.swift; sourceTree = "<group>"; };
 		BDBB658F1E256BFA001A7286 /* TestNSEnergyFormatter.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = TestNSEnergyFormatter.swift; sourceTree = "<group>"; };
 		BDFDF0A61DFF5B3E00C04CC5 /* TestNSPersonNameComponents.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = TestNSPersonNameComponents.swift; sourceTree = "<group>"; };
@@ -956,6 +957,7 @@
 		5B5D88531BBC938800234F36 = {
 			isa = PBXGroup;
 			children = (
+				B167A6641ED7303F0040B09A /* README.md */,
 				5BDC3F2C1BCC5DB500ED97BB /* Foundation */,
 				EAB57B681BD1A255004AC5C5 /* CoreFoundation */,
 				EA66F65B1BF2DF3200136161 /* Bootstrap */,