Returns a function that expects a BenchmarkRunResult, which than prints the results in a nicely formatted markdown, based on the provided options.

Without options, one markdown table will be generated, containing all the bench results.

Typical basic usage:

// add benches, then
runBenchmarks().then(prettyBenchmarkDown(console.log));
// or write to file
runBenchmarks().then(prettyBenchmarkDown((markdown: string) => { Deno.writeTextFileSync("./benchmark.md", markdown); });

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