Fix broken link (#14301)

docs/api/browser-window.md

@@ -1528,5 +1528,5 @@ removed in future Electron releases.
 [page-visibility-api]: https://developer.mozilla.org/en-US/docs/Web/API/Page_Visibility_API
 [quick-look]: https://en.wikipedia.org/wiki/Quick_Look
 [vibrancy-docs]: https://developer.apple.com/documentation/appkit/nsvisualeffectview?preferredLanguage=objc
-[window-levels]: https://developer.apple.com/reference/appkit/nswindow/1664726-window_levels
+[window-levels]: https://developer.apple.com/documentation/appkit/nswindow/level
 [chrome-content-scripts]: https://developer.chrome.com/extensions/content_scripts#execution-environment