Update the leaderboard dialog in some examples (#845)

- Don't show in changelog

Author: D8H

__tests__/post-build/__snapshots__/exampleShortHeaders.json.spec.js.snap

@@ -95,7 +95,7 @@ Get as far as you can before you crash in to a wall, submit your score, and try
     "Starter",
     "Anchor",
     "Objects with animations",
-    "Event functions",
+    "Bitmap Text",
     "Sounds and music",
     "Layers and cameras",
     "Events and control flow",
@@ -125,6 +125,7 @@ Get as far as you can before you crash in to a wall, submit your score, and try
     "Text object",
     "Tiled Sprite Object",
     "Tweening",
+    "Leaderboard dialog",
     "Ellipse movement",
     "Panel sprite button",
     "Shake object",