fix examples & add ci for running examples #38

	name: Check and Test

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

	env:
	CARGO_TERM_COLOR: always

	jobs:
	cargo-check-test:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- name: Format
	run: cargo fmt --check
	- name: Build
	run: cargo build --all-targets --all-features
	- name: Clippy
	run: cargo clippy --all-targets --all-features
	- name: Run tests
	run: cargo test
	- name: Run examples
	run: \|
	for example in $(ls examples/ \| sed 's/\.rs$//'); do
	cargo run --example $example
	done

	semver:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- uses: cargo-bins/cargo-binstall@main
	- name: Install cargo-semver-checks
	run: cargo binstall -y cargo-semver-checks
	- name: Check
	run: cargo semver-checks check-release -p await-tree

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