am 5e75d408: am 7e78827e: am b0cab80d: am 487869a8: am 05bca821: am ec54ca15: add redirect from nofification summary page to Notifications doc because this navigation is now flat so each doc is visible in side nav at top

* commit '5e75d4083082be8be125f9fecefc5cc6ba132c0b':
  add redirect from nofification summary page to Notifications doc because this navigation is now flat so each doc is visible in side nav at top