llama.cpp

cb0b06a8 - `json`: update grammars/README w/ examples & note about additionalProperties (#8132)

`json`: update grammars/README w/ examples & note about additionalProperties (#8132) * json: update grammars/README * mention broken prefixItems * add mention to llama-gbnf-validator * json: explicit type: object for nested items object in cli example