docs(readme): 添加项目介绍和说明信息 #21

	name: Docker Build and Push

	on:
	push:
	branches:
	- main
	tags:
	- 'v*'
	workflow_dispatch:

	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- name: Check out the repo
	uses: actions/checkout@v2

	- name: Set up QEMU
	uses: docker/setup-qemu-action@v1

	- name: Set up Docker Buildx
	uses: docker/setup-buildx-action@v1

	- name: Login to GitHub Container Registry
	uses: docker/login-action@v1
	with:
	registry: ghcr.io
	username: ${{ github.repository_owner }}
	password: ${{ secrets.GITHUB_TOKEN }}

	- name: Extract repository name
	id: extract_repo_name
	run: echo "::set-output name=repo_name::${GITHUB_REPOSITORY##*/}"

	- name: Extract tag name
	if: startsWith(github.ref, 'refs/tags/v')
	id: extract_tag_name
	run: echo "::set-output name=tag_name::${GITHUB_REF#refs/tags/}"

	- name: Build and push nightly
	if: github.ref == 'refs/heads/main'
	uses: docker/build-push-action@v2
	with:
	context: .
	file: ./dockerfile
	push: true
	platforms: linux/amd64
	tags: ghcr.io/${{ github.repository_owner }}/${{ steps.extract_repo_name.outputs.repo_name }}:nightly

	- name: Build and push release
	if: startsWith(github.ref, 'refs/tags/v')
	uses: docker/build-push-action@v2
	with:
	context: .
	file: ./dockerfile
	push: true
	platforms: linux/amd64,linux/arm64
	tags: \|
	ghcr.io/${{ github.repository_owner }}/${{ steps.extract_repo_name.outputs.repo_name }}:${{ steps.extract_tag_name.outputs.tag_name }}
	ghcr.io/${{ github.repository_owner }}/${{ steps.extract_repo_name.outputs.repo_name }}:latest

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