Update README.md #40

	name: Build and Push Multi-Arch Docker Image

	on:
	push:
	branches:
	- main
	pull_request:
	branches:
	- main

	jobs:
	build:
	runs-on: ubuntu-latest

	steps:
	# 检出代码
	- name: Checkout code
	uses: actions/checkout@v2

	# 设置 QEMU 以支持跨架构构建
	- name: Set up QEMU
	uses: docker/setup-qemu-action@v2

	# 设置 Docker Buildx
	- name: Set up Docker Buildx
	uses: docker/setup-buildx-action@v2

	# 登录到 Docker Hub
	- name: Log in to Docker Hub
	uses: docker/login-action@v2
	with:
	username: ${{ secrets.DOCKER_USERNAME }}
	password: ${{ secrets.DOCKER_PASSWORD }}

	# 构建并推送多平台 Docker 镜像
	- name: Build and Push Multi-Arch Docker Image
	run: \|
	docker buildx create --use
	docker buildx build --platform linux/amd64,linux/arm64 -t jaaksi/sublinkx:latest --push .

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