docs: Update style-guide.mdx

Author: igorlukanin

docs/pages/product/data-modeling/recipes/style-guide.mdx

@@ -275,7 +275,7 @@ cubes:
 - Make sure lines are no longer than 80 characters.
 - If quotes are needed around a string, use [backticks][wiki-backtick].
 
-### Example YAML
+### Example JavaScript
 
 ```javascript
 cube(`users`, {