Issue with the README instructions

**Repro**

Go here: [Register the service app (msal-node-api)](https://github.com/Azure-Samples/ms-identity-javascript-tutorial/tree/main/3-Authorization-II/1-call-api#register-the-service-app-msal-node-api) and look at instruction 6.i.a: where it says:

>1. In the **Redirect URI** section enter the following redirect URI:
> a. ``

**Expected behavior**

There should be a Redirect URI value to set to complete this tutorial

**Actual behavior**

It says to enter the value ``, which isn't valid.

It isn't possible to complete this tutorial following the instructions provided.

Looks like someone forgot to paste in the value...