Update README.md

Update documentation for building with Swift Package Manager.  Now with support for CI with SPM as well, promote the SPM based builds from experimental to supported while still recommending CMake due to ease of running applications.

Author: compnerd

README.md

@@ -28,9 +28,9 @@ ninja -C build SwiftWin32 UICatalog
 %CD%\build\bin\UICatalog.exe
 ```
 
-### Experimental (Swift Package Manager)
+### Swift Package Manager
 
-Building this project with swift-package-manager is supported on an experimental basis.  The SPM based build is required for code completion via SourceKit-LSP.  It also allows for the use of Swift/Win32 in other applications using SPM.  In order to use SPM to build this project additional post-build steps are required to use the demo applications.
+Building this project with swift-package-manager is supported although CMake is recommended for ease.  The Swift Package Manager based build is required for code completion via SourceKit-LSP.  It also allows for the use of Swift/Win32 in other applications using SPM.  In order to use SPM to build this project additional post-build steps are required to use the demo applications.
 
 The following known limitations are known:
 
@@ -41,5 +41,5 @@ The following known limitations are known:
 swift build --product UICatalog
 copy Examples\UICatalog\UICatalog.exe.manifest .build\x86_64-unknown-windows-msvc\debug\
 copy Examples\UICatalog\Info.plist .build\x86_64-unknown-windows-msvc\debug\
-.build\x86_64-unknown-windows-msvc\debug\UICatalog.exe
+swift run UICatalog
 ```