chore: update README.md for Beta launch. #384

	name: Build and Test

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

	permissions: # added using https://github.com/step-security/secure-workflows
	contents: read

	jobs:
	test:
	strategy:
	matrix:
	# Use windows-2019, which is a lot faster than windows-2022:
	# https://github.com/actions/runner-images/issues/5166
	os: [ubuntu-latest, macos-latest, windows-2019]

	runs-on: ${{ matrix.os }}

	steps:
	- name: Check out code into the Go module directory
	uses: actions/checkout@v3

	- name: Set up Go 1.20
	uses: actions/setup-go@v4
	with:
	go-version-file: '${{ github.workspace }}/go.mod'

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

	- name: Build X
	run: go build -C x -o bin/ -v ./...

	- name: Test SDK
	run: go test -v -race -bench '.' ./... -benchtime=100ms

	- name: Test X
	run: go test -C x -v -race -bench '.' ./... -benchtime=100ms

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