docs(api): Fix formatting of webpackExports section (#7360)

Author: matthias-ccri

src/content/api/module-methods.mdx

@@ -190,7 +190,9 @@ A regular expression that will be matched against during import resolution. Any
 
 T> Note that `webpackInclude` and `webpackExclude` options do not interfere with the prefix. eg: `./locale`.
 
-`webpackExports`: tells webpack to only bundle the specified exports of a dynamically `import()`ed module. It can decrease the output size of a chunk. Available since [webpack 5.0.0-beta.18](https://github.com/webpack/webpack/releases/tag/v5.0.0-beta.18).
+##### `webpackExports`
+
+Tells webpack to only bundle the specified exports of a dynamically `import()`ed module. It can decrease the output size of a chunk. Available since [webpack 5.0.0-beta.18](https://github.com/webpack/webpack/releases/tag/v5.0.0-beta.18).
 
 ## CommonJS