[doc] add sponsors section to readme #138

	---
	name: CI
	on:
	push:
	branches:
	- '**'
	pull_request:

	jobs:
	test:
	name: Test ${{matrix.go}}
	runs-on: [ubuntu-latest]
	strategy:
	fail-fast: false
	max-parallel: 4
	matrix:
	go: [
	"1.22",
	"1.21",
	"1.20",
	"1.19",
	]

	steps:
	- name: Checkout branch
	uses: actions/checkout@v2

	- name: Setup go
	uses: actions/setup-go@v2
	with:
	go-version: ${{matrix.go}}

	- name: Test
	run: \|
	go install golang.org/x/lint/golint@latest
	OUT="$(go get -a)"; test -z "$OUT" \|\| (echo "$OUT" && return 1)
	OUT="$(gofmt -l -d ./)"; test -z "$OUT" \|\| (echo "$OUT" && return 1)
	golint -set_exit_status
	go vet -v ./...
	go test -race -v -coverprofile=coverage.txt -covermode=atomic ./...

	build:
	name: Build ${{matrix.go}}
	runs-on: [ubuntu-latest]
	strategy:
	fail-fast: false
	max-parallel: 4
	matrix:
	go: [
	"1.22",
	"1.21",
	"1.20",
	"1.19",
	]

	steps:
	- name: Checkout branch
	uses: actions/checkout@v2

	- name: Setup go
	uses: actions/setup-go@v2
	with:
	go-version: ${{matrix.go}}

	- name: Build
	run: \|
	go install golang.org/x/lint/golint@latest
	OUT="$(go get -a)"; test -z "$OUT" \|\| (echo "$OUT" && return 1)
	OUT="$(gofmt -l -d ./)"; test -z "$OUT" \|\| (echo "$OUT" && return 1)
	golint -set_exit_status
	go build

	codecov:
	name: Codecov
	runs-on: [ubuntu-latest]
	needs:
	- test
	- build
	steps:
	- name: Run Codecov
	run: bash <(curl -s https://codecov.io/bash)

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