Http://localhost:3000/ cannot see settings page

I followed this tutorial to create my first meteor app,

Everything was smooth except the fact that i cant see the backend panel of the new app or say the admin menu bar to go settings page.

I try to access like localhost:3000/admin or localhost:3000/settings. It seems like thats the not the page for backend. Also they have mentioned that when we sign up for the first time, we will get the administrator access. i did the same thing and able to sign in but not as admin. Any idea why ?

Below is the screenshot :