docs: rewrite sections in the contributing guide #237

	on:
	push:
	branches: [ main ]
	pull_request:
	branches: [ main ]
	name: generate-and-test
	jobs:
	test:
	runs-on: ubuntu-latest
	steps:
	- name: checkout
	uses: actions/checkout@v4

	- name: install Go
	uses: actions/setup-go@v5
	with:
	go-version: ^1.21

	- name: get modules
	run: go mod vendor

	- name: generate
	run: make generate

	- name: format
	run: make format && git diff --exit-code

	- name: golangci-lint
	uses: golangci/golangci-lint-action@v6.1.1
	with:
	version: v1.61

	- name: run tests
	run: make test

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