Merge branch 'add-default-route-for-admin-geo' into 'master'

Add default route for admin geo

See merge request gitlab-org/gitlab-ee!15726

ee/changelogs/unreleased/add-default-route-for-admin-geo.yml

+---
+title: Add default route for admin/geo
+merge_request: 15726
+author: Lee Tickett
+type: other

ee/config/routes/admin.rb

@@ -26,6 +26,8 @@ namespace :admin do
   end
 
   namespace :geo do
+    get '/' => 'nodes#index'
+
     resources :nodes, only: [:index, :create, :new, :edit, :update]
 
     resources :projects, only: [:index, :destroy] do