Update dockerfile, update docs #14

	name: Docker Build (Docker Hub)
	on:
	push:
	tags:
	- v*
	workflow_dispatch:

	env:
	REGISTRY: docker.io
	IMAGE_NAME: motortruck1221/ruby

	jobs:
	build-and-push-image:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout Repo
	uses: actions/checkout@v3
	- name: Submodule Update
	run: git submodule update --init --recursive
	- name: Setup Docker Buildx
	uses: docker/setup-buildx-action@79abd3f86f79a9d68a23c75a09a9a85889262adf
	- name: Login To registry ${{ env.REGISTRY }}
	uses: docker/login-action@28218f9b04b4f3f62068d7b6ce6ca5b26e35336c
	with:
	registry: ${{ env.REGISTRY }}
	username: ${{ secrets.DOCKER_USERNAME }}
	password: ${{ secrets.DOCKER_PASSWORD }}
	- name: Extract Docker metadata
	id: meta
	uses: docker/metadata-action@98669ae865ea3cffbcbaa878cf57c20bbf1c6c38
	with:
	images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
	- name: Build and push Docker image
	id: build-and-push
	uses: docker/build-push-action@ac9327eae2b366085ac7f6a2d02df8aa8ead720a
	with:
	context: .
	file: ./docker/Dockerfile
	push: ${{ github.event_name != 'pull_request' }}
	tags: ${{ steps.meta.outputs.tags }}
	labels: ${{ steps.meta.outputs.labels }}
	cache-from: type=gha
	cache-to: type=gha,mode=max

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