Update doc

docs/config.md

@@ -31,7 +31,7 @@ If you want to use this, please note that the image size must be 230 x 52.
 ## `default_group`
 When [documenting your api](documenting.md), you use `@group` annotations to group API endpoints. Endpoints which do not have a ggroup annotation will be grouped under the `default_group`. Defaults to **"general"**.
 
-## example_languages
+## `example_languages`
 For each endpoint, an example request is shown in each of the languages specified in this array. Currently only `bash`, `javascript` and `php` are supported. You can add your own language, but you must also define the corresponding view (see [Specifying languages for examples](generating-documentation.html#specifying-language-for-examples)). Default: `["bash", "javascript"]` 
  
 ##  `faker_seed`