Update formula_json.json

Improve Liquid template for formula JSON generation

- Corrected the use of Liquid templating for generating formula JSON files.
- Improved readability and formatting of the template.
- Ensured proper handling of analytics, dependencies, caveats, and generated date sections.

_layouts/formula_json.json

@@ -48,4 +48,5 @@
 "linux_caveats":{{ fdata.linux_caveats | jsonify }},
 
 <!-- Generated Date Section -->
-"generated_date":"{{ "today" | date: "%F" }}"}
+"generated_date":"{{ "today" | date: "%F" }}"
+}