Update README.md and add CONTRIBUTING.md (#171) #41

	# This workflow will checkout, build, and run the tests for the Go S2 project.
	# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-go

	name: Go Build and Test

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

	permissions:
	contents: read

	jobs:

	build:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	# Test on supported go compiler releases as well as the oldest version we support from go.mod.
	go: [ '1.21', 'oldstable', 'stable' ]
	name: Go version ${{ matrix.go }}
	steps:
	- uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2

	- name: Set up Go
	uses: actions/setup-go@0aaccfd150d50ccaeb58ebd88d36e91967a5f35b # v5.4.0
	with:
	go-version: ${{ matrix.go }}

	- name: Build
	run: go build -v ./...

	- name: Test
	run: go test -v ./...

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