Benchmark of markdown converter in rust-wasm and v8

https://beijaflor.github.io/wasm-markdown-bench/

app

method	lang	bench(ns)
marked	JS	4.480000003241003
pulldown_cmark	Rust	2.4299999931827188
markdown_rs	Rust	41.44000000087544
comrak	Rust	8.734999995795079

native

Rust

method	bench(ns)
reverse	286
strait	86

node v8

method	bench(hz)
reverse string	9386
strait string	130814

web app

yarn install
yarn wasm:build
yarn serve

and access to localhost:8080

native bench

yarn install
yarn bench:wasm
yarn bench:rust