docs: add short setup guide to GUIDELINES.md #781

	name: gas-bench
	# This workflow checks that the compiled wasm binary of every example contract
	# can be deployed to Arbitrum Stylus.
	permissions:
	contents: read
	on:
	push:
	branches: [ main, release/* ]
	pull_request:
	concurrency:
	group: ${{ github.workflow }}-${{ github.head_ref \|\| github.run_id }}
	cancel-in-progress: true
	env:
	CARGO_TERM_COLOR: always
	jobs:
	required:
	name: Gas usage report
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4

	- name: Install rust
	uses: actions-rust-lang/setup-rust-toolchain@v1
	with:
	cache-key: "gas-bench"
	rustflags: ""

	- name: Install cargo-stylus
	run: cargo install [email protected]

	- name: Install solc
	run: \|
	curl -LO https://github.com/ethereum/solidity/releases/download/v0.8.24/solc-static-linux
	sudo mv solc-static-linux /usr/bin/solc
	sudo chmod a+x /usr/bin/solc

	- name: Setup nitro node
	run: ./scripts/nitro-testnode.sh -d -i
	- name: run benches
	run: ./scripts/bench.sh

Provide feedback