docs: include express.json example in using middleware page

Author: kushal4345

_includes/api/en/4x/express.json.md

@@ -40,12 +40,3 @@ The following table describes the properties of the optional `options` object.
 | `verify`      | This option, if supplied, is called as `verify(req, res, buf, encoding)`, where `buf` is a `Buffer` of the raw request body and `encoding` is the encoding of the request. The parsing can be aborted by throwing an error. | Function | `undefined` |
 
 </div>
-
-#### Example: Different limits for specific routes
-
-```js
-// Limit 5MB for /upload
-app.use('/upload', express.json({ limit: '5mb' }))
-
-// Default limit for other routes
-app.use(express.json())

_includes/api/en/4x/express.static.md

@@ -93,3 +93,13 @@ var options = {
 
 app.use(express.static('public', options))
 ```
+<h4 id='example.of.express.json'>Example of express.json</h4>
+
+Here is an example of using the `express.json` middleware function with a custom limit:
+
+```js
+// Apply a 5MB limit for /upload requests
+app.use('/upload', express.json({ limit: '5mb' }))
+
+// Use default limit for all other routes
+app.use(express.json())