Update README.md #179

	name: CI

	on:
	push:
	branches: [ main ]

	jobs:
	cache_iai_benchs:
	name: Cache iai benchs of main
	runs-on: ubuntu-20.04
	steps:
	- name: Install valgrind
	run: \|
	sudo apt update
	sudo apt-get install -y valgrind
	cargo install --version 0.3.1 iai-callgrind-runner
	- name: Install stable toolchain
	uses: dtolnay/rust-toolchain@stable
	with:
	toolchain: stable
	- uses: actions/checkout@v3
	- uses: Swatinem/rust-cache@v2
	with:
	shared-key: ${{ runner.os }}-benchmark-build-cache
	- name: Run benchmarks
	run: cargo bench --no-fail-fast --bench "iai_*"
	- name: Save cache
	uses: actions/cache/save@v3
	with:
	path: \|
	*/target
	key: ${{ runner.os }}-iai-benchmark-cache-${{ github.sha }}

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