Update README.md #43

	name: Docker Image CI

	on:
	push:
	branches: [ main ]
	pull_request:
	branches: [ main ]

	jobs:

	build:
	runs-on: ubuntu-latest

	steps:
	- name: Checkout
	uses: actions/checkout@v3

	- name: Checkout submodules
	shell: bash
	run: \|
	# If your submodules are configured to use SSH instead of HTTPS please uncomment the following line
	# git config --global url."https://github.com/".insteadOf "[email protected]:"
	auth_header="$(git config --local --get http.https://github.com/.extraheader)"
	git submodule sync --recursive
	git -c "http.extraheader=$auth_header" -c protocol.version=2 submodule update --init --force --recursive --depth=1

	- name: Create dummy config
	run: echo '{}' > src/assets/config.json

	- name: Set up QEMU
	uses: docker/setup-qemu-action@v2

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

	- name: Login to DockerHub
	uses: docker/login-action@v2
	with:
	username: ${{ secrets.DOCKERHUB_USERNAME }}
	password: ${{ secrets.DOCKERHUB_TOKEN }}

	- name: Build and push
	uses: docker/build-push-action@v3
	with:
	context: .
	push: true
	tags: polkascan/explorer-ui:latest

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