Update README.md to say step 6 instead of step 5 twice (#23) #53

	name: Publish Docker Image

	on:
	push:
	branches:
	- main

	jobs:
	push_to_registry:
	name: Push image to Docker Hub
	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 DockerHub
	uses: docker/login-action@v1
	with:
	username: ${{ secrets.DOCKERHUB_USERNAME }}
	password: ${{ secrets.DOCKERHUB_TOKEN }}
	-
	name: Build and push
	uses: docker/build-push-action@v2
	with:
	context: .
	platforms: \|-
	linux/amd64
	linux/arm64
	file: ./Dockerfile
	push: true
	tags: usccsci104/docker:20.04
	cache-from: type=registry,ref=usccsci104/docker:buildcache
	cache-to: type=registry,ref=usccsci104/docker:buildcache,mode=max
	-
	name: Image digest
	run: echo ${{ steps.docker_build.outputs.digest }}

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