Description

Updated the language extensions documentation to clarify that only half of the extensions are inspired by the official cooklang-rs parser. Also renamed the "Ingredient alternatives" section to "Alternative ingredients" for better clarity. Updated the JSON example to match the current output format of the parser, providing a more accurate representation of how alternative ingredients are structured in the parsed output.

Related Issue: N/A

Type of change

• Documentation change (improvement to the Vitepress documentation or playground)

How Has This Been Tested?

• Verified the documentation renders correctly in the Vitepress site
• Confirmed the JSON example matches the current parser output format

Checklist:

• I have performed a self-review of my code
• I have made corresponding changes to the documentation
• I have run pnpm lint and my changes generate no new warnings