update docker to best practices, update readme, and update trunk yaml #4

	name: Build and Deploy Docker Image

	permissions:
	contents: read
	packages: write

	on:
	push:
	branches:
	- main

	jobs:
	build_and_push:
	runs-on: ubuntu-latest
	steps:
	- name: Check out the repository
	uses: actions/checkout@v2

	- name: Set up Docker Buildx
	uses: docker/setup-buildx-action@v3

	- name: Login to Docker Hub
	uses: docker/login-action@v3
	with:
	username: ${{ secrets.DOCKER_USERNAME }}
	password: ${{ secrets.DOCKER_PASSWORD }}

	- name: Extract short SHA
	id: sha
	run: echo "::set-output name=short_sha::$(echo ${GITHUB_SHA} \| cut -c 1-7)"

	- name: Build and push Docker image
	uses: docker/build-push-action@v5
	with:
	context: .
	push: true
	tags: mlpierce22/tea:${{ steps.sha.outputs.short_sha }}

	- name: Output Docker image name
	run: \|
	echo "Docker image name: mlpierce22/tea:${{ steps.sha.outputs.short_sha }}"

Provide feedback