add benchmark to README #7

	name: Code Coverage

	on:
	push:
	branches: [ "main" ]
	pull_request:
	branches: [ "main" ]

	env:
	CARGO_TERM_COLOR: always

	jobs:
	build_and_test:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v1
	- uses: actions-rs/toolchain@v1
	with:
	toolchain: nightly
	override: true
	- name: Clean
	uses: actions-rs/cargo@v1
	with:
	command: clean
	- name: Build
	uses: actions-rs/cargo@v1
	with:
	command: build
	args: --release --all-features
	- name: Test
	uses: actions-rs/cargo@v1
	with:
	command: test
	args: --all-features --no-fail-fast
	env:
	CARGO_INCREMENTAL: '0'
	RUSTFLAGS: '-Zprofile -Ccodegen-units=1 -Cinline-threshold=0 -Clink-dead-code -Coverflow-checks=off -Cpanic=abort -Zpanic_abort_tests'
	RUSTDOCFLAGS: '-Zprofile -Ccodegen-units=1 -Cinline-threshold=0 -Clink-dead-code -Coverflow-checks=off -Cpanic=abort -Zpanic_abort_tests'
	- name: grcov
	uses: actions-rs/grcov@v0.1
	- name: Codecov
	uses: codecov/codecov-action@v3
	env:
	CODECOV_TOKEN: ${{ secrets.CODECOV_ORG_TOKEN }}
	with:
	verbose: true
	fail_ci_if_error: true

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