docs: update README.md #54

	name: Build Image
	on:
	push:
	branches:
	- main
	- feat/github-actions-build-image

	jobs:
	duplicate_guard:
	runs-on: self-hosted
	outputs:
	should_skip: ${{ steps.skip_check.outputs.should_skip }}
	steps:
	- id: skip_check
	uses: fkirc/skip-duplicate-actions@master
	with:
	concurrent_skipping: "never"
	skip_after_successful_duplicate: "true"
	paths_ignore: '["/README.md", "/docs/**"]'
	do_not_skip: '["pull_request", "workflow_dispatch", "schedule"]'

	docker-build:
	needs: duplicate_guard
	if: ${{ needs.duplicate_guard.outputs.should_skip != 'true' }}
	runs-on: self-hosted
	steps:
	- name: checkout
	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: Set up Java for Gradle
	run: \|
	sudo apt update -y
	sudo apt install openjdk-17-jdk -y
	- name: Login to GitHub Container Registry
	uses: docker/login-action@v1
	with:
	registry: ghcr.io
	username: techeer-f5
	password: ${{ secrets.GH_TOKEN }}
	- name: Build and push images & upload to ECR
	id: build_images
	run: \|
	./gradlew bootBuildImage
	docker tag jmt-monster-backend:latest ghcr.io/techeer-f5/jmt-monster-backend:latest
	docker push ghcr.io/techeer-f5/jmt-monster-backend:latest

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