Add publish container github action and remove old action #3

	permissions:
	id-token: write
	contents: read
	packages: write

	name: Publish markdown2confluence container image

	on:
	push:
	branches: [main,ol/containerize]

	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3

	- 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.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}

	- name: Build and push
	uses: docker/build-push-action@v3
	with:
	context: ./publisher
	file: ./publisher/Dockerfile
	push: true
	tags: ghcr.io/${{ github.repository }}:alpha-latest

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