message: add configuration option link
diff: @@ -20,7 +20,7 @@ Please find the instructions [here](https://docs.microsoft.com/en-us/azure/azure
  appInsights.trackPageView(); // Manually call trackPageView to establish the current user/session/pageview
  ```
  - b. Expose all configuration options you need in the ApplicationCustomizerProperties interface.
  + b. Expose all [configuration options](https://github.com/microsoft/ApplicationInsights-JS#configuration) you need in the ApplicationCustomizerProperties interface.
  ```js
  export interface IAppInsightsApplicationCustomizerProperties {
  /* ...Other Configuration Options... */
  