more unit tests, update README #5

	name: ci

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

	env:
	CARGO_TERM_COLOR: always

	jobs:
	build_and_test:
	name: Build and test
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	with:
	submodules: recursive
	- uses: actions-rs/toolchain@v1
	with:
	toolchain: stable
	components: clippy, rustfmt
	- name: Build
	run: cargo build --release --all-features --verbose
	- name: Run tests
	run: cargo test --verbose
	- name: Run clippy
	uses: actions-rs/clippy-check@v1
	with:
	token: ${{ secrets.GITHUB_TOKEN }}
	args: --all-features
	if: github.event_name == 'pull_request'

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