docs(guides): Asset management bundle finalename (#2635)

* docs(guides) asset management bundle finalename

* docs(guides) asset management bundle filename in proper place

Author: EugeneHlushko

src/content/guides/asset-management.md

@@ -36,6 +36,21 @@ __dist/index.html__
   </html>
 ```
 
+__webpack.config.js__
+
+``` diff
+  const path = require('path');
+
+  module.exports = {
+    entry: './src/index.js',
+    output: {
+-     filename: 'main.js',
++     filename: 'bundle.js',
+      path: path.resolve(__dirname, 'dist')
+    }
+  };
+```
+
 
 ## Loading CSS