Update documentation (#231) #46

	name: Docker Image CI
	on:
	push:
	branches:
	- master
	- demo-*
	tags: '*'

	jobs:
	build_and_publish:
	if: github.repository == 'genome-nexus/genome-nexus-annotation-pipeline'
	runs-on: ubuntu-latest
	steps:
	- name: 'Checkout git repo'
	uses: actions/checkout@v1
	- name: Extract branch or tag name
	# The GITHUB_REF variable is like "refs/head/branch_name" or
	# "refs/tag/tag_name". If the tag is prefixed with v, this is a new
	# version and we want to push it with the tag "latest" as well. One can give
	# the same image multiple tags by using ","
	run: echo "##[set-output name=image_tag_names;]$(echo ${GITHUB_REF##*/} \| sed 's/^v/latest,/g')"
	id: extract_tags
	- name: 'Docker build with cache'
	uses: whoan/docker-build-with-cache-action@v5
	with:
	username: "${{ secrets.DOCKER_USERNAME }}"
	password: "${{ secrets.DOCKER_PASSWORD }}"
	image_name: genomenexus/gn-annotation-pipeline
	image_tag: ${{ steps.extract_tags.outputs.image_tag_names }}
	pull_image_and_stages: false

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