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 'b0cab80d117ff842767d9bb95ff56d0b8d002d9a':
  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