Merge pull request #8390 from sathiyaaa/issue-8389-formatting-error

added a missing code-fence

Author: jeff-matthews

src/guides/v2.3/javascript-dev-guide/javascript/js_init.md

@@ -44,6 +44,7 @@ Consider the example of adding a custom carousel JS:
             $(element).<carousel_name>(config);
         };
     });
+   ```
 
 1. Add the RequireJS config to the `app/design/frontend/<package_name>/<theme_name>/requirejs-config.js` file.