Update subheading to h2 from h3

Author: ankur22

docs/sources/k6/next/javascript-api/k6-browser/page/route.md

@@ -14,13 +14,13 @@ When several routes match the given pattern, they run in the order opposite to t
 | url       | string or Regexp                                                                             | `''`    | URL to match during routing.                        |
 | handler   | function([Route](https://grafana.com/docs/k6/<K6_VERSION>/javascript-api/k6-browser/route/)) | null    | Handler function executed when routing the request. |
 
-### Returns
+## Returns
 
 | Type            | Description                                                  |
 | --------------- | ------------------------------------------------------------ |
 | `Promise<void>` | A Promise that fulfills when the route is added to the page. |
 
-### Example
+## Example
 
 {{< code >}}
 

docs/sources/k6/next/javascript-api/k6-browser/route/abort.md

@@ -11,13 +11,13 @@ Aborts the request with the given error code.
 | --------- | ------ | ---------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
 | errorCode | string | `'failed'` | Error code when aborting the request. Can be one of the following: `'aborted'`, `'accessdenied'`, `'addressunreachable'`, `'blockedbyclient'`, `'blockedbyresponse'`, `'connectionaborted'`,`'connectionclosed'`, `'connectionfailed'`, `'connectionrefused'`, `'connectionreset'`, `'internetdisconnected'`, `'namenotresolved'`, `'timedout'`, `'failed'`. |
 
-### Returns
+## Returns
 
 | Type            | Description                                          |
 | --------------- | ---------------------------------------------------- |
 | `Promise<void>` | A Promise that fulfills when the request is aborted. |
 
-### Example
+## Example
 
 {{< code >}}
 

docs/sources/k6/next/javascript-api/k6-browser/route/continue.md

@@ -21,13 +21,13 @@ Sends the request to the network with optional overrides.
 | options.postData | string or Buffer | `''`    | Post data of the request.          |
 | options.url      | string           | `''`    | Request URL.                       |
 
-### Returns
+## Returns
 
 | Type            | Description                                          |
 | --------------- | ---------------------------------------------------- |
 | `Promise<void>` | A Promise that fulfills when the request is resumed. |
 
-### Example
+## Example
 
 {{< code >}}
 

docs/sources/k6/next/javascript-api/k6-browser/route/fulfill.md

@@ -21,13 +21,13 @@ Fulfills the request with the given response.
 | options.headers     | object           | null    | Response headers.                               |
 | options.status      | number           | `200`   | Response status code.                           |
 
-### Returns
+## Returns
 
 | Type            | Description                                            |
 | --------------- | ------------------------------------------------------ |
 | `Promise<void>` | A Promise that fulfills when the request is fulfilled. |
 
-### Example
+## Example
 
 {{< code >}}
 

docs/sources/k6/next/javascript-api/k6-browser/route/request.md

@@ -7,13 +7,13 @@ description: 'Browser module: Route.request method'
 
 Returns the matching [Request](https://grafana.com/docs/k6/<K6_VERSION>/javascript-api/k6-browser/request) object.
 
-### Returns
+## Returns
 
 | Type      | Description           |
 | --------- | --------------------- |
 | `Request` | The `Request` object. |
 
-### Example
+## Example
 
 {{< code >}}