update

Author: zhiyuanliang-ms

articles/azure-app-configuration/TOC.yml

@@ -140,7 +140,7 @@
         href: howto-feature-filters.md
       - name: ASP.NET Core
         href: howto-feature-filters-aspnet-core.md
-      - name: Node.js
+      - name: JavaScript
         href: howto-feature-filters-javascript.md
       - name: Python
         href: howto-feature-filters-python.md
@@ -150,7 +150,7 @@
         href: howto-timewindow-filter.md
       - name: ASP.NET Core
         href: howto-timewindow-filter-aspnet-core.md
-      - name: Node.js
+      - name: JavaScipt
         href: howto-timewindow-filter-javascript.md
     - name: Roll out features to targeted audience
       items:

articles/azure-app-configuration/howto-feature-filters-javascript.md

@@ -17,7 +17,7 @@ Feature flags can use feature filters to enable features conditionally. To learn
 
 The example used in this tutorial is based on the Node.js application introduced in the feature management [quickstart](./quickstart-feature-flag-javascript.md). Before proceeding further, complete the quickstart to create a Node.js application with a *Beta* feature flag. Once completed, you must [add a custom feature filter](./howto-feature-filters.md) to the *Beta* feature flag in your App Configuration store. 
 
-In this tutorial, you'll learn how to implement a custom feature filter and use the feature filter to enable features conditionally. We are using the Node.js console app you created in the [quickstart](./quickstart-feature-flag-javascript.md) as an example in the content.
+In this tutorial, you'll learn how to implement a custom feature filter and use the feature filter to enable features conditionally. We are using the Node.js console app as an example, but you can also use the custom feature filter in other JavaScript applications.
 
 ## Prerequisites
 

articles/azure-app-configuration/quickstart-feature-flag-javascript.md

@@ -34,6 +34,12 @@ Add a feature flag called *Beta* to the App Configuration store and leave **Labe
 
 ## Use the feature flag
 
+1. Install the Feature Management by using the `npm install` command.
+
+    ``` console
+    npm install @microsoft/feature-management
+    ```
+
 1. Create a file named *app.js* and add the following code.
 
     ``` javascript