[cxx-interop] Add documentation about calling ctor or static factory of SWIFT_SHARED_REFERENCE types as Swift Initializer#1079

fahadnayyar wants to merge 1 commit intoswiftlang:mainswiftlang/swift-org-website:mainfrom

fahadnayyar:cxx-frt-ctor-static-factory-docsfahadnayyar/swift-org-website:cxx-frt-ctor-static-factory-docsCopy head branch name to clipboard