Add comment and docs #38

	name: Rust

	on: [push, pull_request]

	jobs:
	build:

	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v1
	- name: Deps
	run: \|
	wget https://apt.llvm.org/llvm.sh && chmod +x llvm.sh && sudo ./llvm.sh 18 && rm llvm.sh
	rustup target add riscv64imac-unknown-none-elf
	- name: Install Rust components
	run: rustup component add rustfmt clippy
	- name: Check format
	run: cargo fmt --all -- --check
	- name: Run cargo clippy
	run: cargo clippy --all
	- name: Build
	run: cargo build
	- name: Run cargo test
	run: cargo test --all
	- name: Build native-simulator test contracts
	run: cd tests/test-contracts && make build
	- name: Run cargo test (with native-simulator)
	run: cargo test --features="native-simulator" --all

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