Update teams-auto-attendant-javascript.md

Author: rzdor

articles/communication-services/quickstarts/voice-video-calling/includes/teams-auto-attendant/teams-auto-attendant-javascript.md

@@ -401,7 +401,7 @@ const CopyPlugin = require("copy-webpack-plugin");
 
 module.exports = {
     mode: 'development',
-    entry: './index.js',
+    entry: './client.js',
     output: {
         filename: 'main.js',
         path: path.resolve(__dirname, 'dist'),