docs(config): output.filename link fix (#11369)

Author: vsn4ik

website/docs/en/config/output.mdx

@@ -426,7 +426,7 @@ export default {
 ## output.filename
 
 - **Type:** `string | (pathData: PathData, assetInfo?: AssetInfo) => string`
-- **Default:** When `[output.module](#outputmodule)` is `true`, it is `'[name].mjs'`, otherwise it is `'[name].js'`.
+- **Default:** When [`output.module`](#outputmodule) is `true`, it is `'[name].mjs'`, otherwise it is `'[name].js'`.
 
 This option determines the name of each output bundle. The bundle is written to the directory specified by the [`output.path`](#outputpath) option.