Merge pull request #59 from microsoftgraph/patch-57

Adding missing NPM module

Author: jasonjoh

tutorial/02-create-app.md

@@ -55,7 +55,7 @@ Before moving on, install some additional packages that you will use later:
 1. Run the following command in your CLI.
 
     ```Shell
-    npm install dotenv@8.2.0 moment@2.29.1 moment-timezone@0.5.31 connect-flash@0.1.1 express-session@1.17.1 isomorphic-fetch@3.0.0
+    npm install dotenv@8.2.0 moment@2.29.1 moment-timezone@0.5.31 connect-flash@0.1.1 express-session@1.17.1 express-promise-router@4.0.1 isomorphic-fetch@3.0.0
     npm install @azure/msal-node@1.0.0-beta.0 @microsoft/microsoft-graph-client@2.1.1 windows-iana@4.2.1 express-validator@6.6.1 uuid@8.3.1
     ```
 

tutorial/04-add-aad-auth.md

@@ -19,7 +19,7 @@ In this exercise you will extend the application from the previous exercise to s
 
 ## Implement sign-in
 
-1. Locate the line `var indexRouter = require('./routes/index');` in **./app.js**. Insert the following code **before** that line.
+1. Locate the line `var app = express();` in **./app.js**. Insert the following code **after** that line.
 
     :::code language="javascript" source="../demo/graph-tutorial/app.js" id="MsalInitSnippet":::