Merge pull request #114 from will-lumley/william-lumley/fix-typo

Updated `AppFlags.swift` to `AppFlags.self` in Vexillographer.md

Author: bok-

Sources/Vexillographer/Vexillographer.docc/Vexillographer.md

@@ -17,7 +17,7 @@ import Vexillographer
 
 struct MyView: View {
 
-    let flagPole = FlagPole(hoist: AppFlags.swift)
+    let flagPole = FlagPole(hoist: AppFlags.self)
 
     var body: some View {
         NavigationView {