Migrated project to Xcode 12.0.

Author: objecthub

MarkdownKit.xcodeproj/project.pbxproj

@@ -349,7 +349,7 @@
 			isa = PBXProject;
 			attributes = {
 				LastSwiftUpdateCheck = 1030;
-				LastUpgradeCheck = 1110;
+				LastUpgradeCheck = 1200;
 				ORGANIZATIONNAME = "Matthias Zenger";
 				TargetAttributes = {
 					CC2AF6E7227CD98100BEA420 = {
@@ -498,6 +498,7 @@
 				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
 				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
 				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_QUOTED_INCLUDE_IN_FRAMEWORK_HEADER = YES;
 				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
 				CLANG_WARN_STRICT_PROTOTYPES = YES;
 				CLANG_WARN_SUSPICIOUS_MOVE = YES;
@@ -563,6 +564,7 @@
 				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
 				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
 				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_QUOTED_INCLUDE_IN_FRAMEWORK_HEADER = YES;
 				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
 				CLANG_WARN_STRICT_PROTOTYPES = YES;
 				CLANG_WARN_SUSPICIOUS_MOVE = YES;
@@ -665,6 +667,7 @@
 					"@executable_path/../Frameworks",
 					"@loader_path/../Frameworks",
 				);
+				MACOSX_DEPLOYMENT_TARGET = 10.15;
 				PRODUCT_BUNDLE_IDENTIFIER = net.objecthub.MarkdownKitTests;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_VERSION = 5.0;
@@ -684,6 +687,7 @@
 					"@executable_path/../Frameworks",
 					"@loader_path/../Frameworks",
 				);
+				MACOSX_DEPLOYMENT_TARGET = 10.15;
 				PRODUCT_BUNDLE_IDENTIFIER = net.objecthub.MarkdownKitTests;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_VERSION = 5.0;

MarkdownKit.xcodeproj/xcshareddata/xcschemes/MarkdownKit.xcscheme

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1110"
+   LastUpgradeVersion = "1200"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"

MarkdownKit.xcodeproj/xcshareddata/xcschemes/MarkdownKitProcess.xcscheme

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1110"
+   LastUpgradeVersion = "1200"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"

README.md

@@ -2,8 +2,8 @@
 
 <p>
 <a href="https://developer.apple.com/osx/"><img src="https://img.shields.io/badge/Platform-macOS-blue.svg?style=flat" alt="Platform: macOS" /></a>
-<a href="https://developer.apple.com/swift/"><img src="https://img.shields.io/badge/Language-Swift%205.2-green.svg?style=flat" alt="Language: Swift 5.2" /></a>
-<a href="https://developer.apple.com/xcode/"><img src="https://img.shields.io/badge/IDE-Xcode%2011.5-orange.svg?style=flat" alt="IDE: Xcode 11.5" /></a>
+<a href="https://developer.apple.com/swift/"><img src="https://img.shields.io/badge/Language-Swift%205.3-green.svg?style=flat" alt="Language: Swift 5.3" /></a>
+<a href="https://developer.apple.com/xcode/"><img src="https://img.shields.io/badge/IDE-Xcode%2012.0-orange.svg?style=flat" alt="IDE: Xcode 12.0" /></a>
 <a href="https://raw.githubusercontent.com/objecthub/swift-markdownkit/master/LICENSE"><img src="http://img.shields.io/badge/License-Apache-lightgrey.svg?style=flat" alt="License: Apache" /></a>
 </p>
 
@@ -239,8 +239,8 @@ The command-line tool can be compiled with the _Swift Package Manager_, so _Xcod
 for that. Similarly, just for compiling the framework and trying the command-line tool in _Xcode_, the
 _Swift Package Manager_ is not needed.
 
-- [Xcode 11.5](https://developer.apple.com/xcode/)
-- [Swift 5.2](https://developer.apple.com/swift/)
+- [Xcode 12.0](https://developer.apple.com/xcode/)
+- [Swift 5.3](https://developer.apple.com/swift/)
 - [Swift Package Manager](https://swift.org/package-manager/)
 
 ## Copyright