Provided pre-benchmarks are too old

[rilysh]

Hi. This repo provides a pre-calculated benchmark on here, however, it seems like it hasn't got an update since 2016 (as the README says). It would be also nice if there are a few benchmarks, running each JSON parser on specific hardwares (e.g. x86_64, ARM64 (preferably macos), and RISC-V (probably?)) in the future.

An update on this would be appreciated.

rily.