fix #8 add readme #2

	name: Compress Images
	on:
	pull_request:
	# Run Image Actions when JPG, JPEG, PNG or WebP files are added or changed.
	# See https://help.github.com/en/actions/automating-your-workflow-with-github-actions/workflow-syntax-for-github-actions#onpushpull_requestpaths for reference.
	paths:
	- '**.jpg'
	- '**.jpeg'
	- '**.png'
	- '**.webp'
	jobs:
	build:
	# Only run on Pull Requests within the same repository, and not from forks.
	if: github.event.pull_request.head.repo.full_name == github.repository
	name: calibreapp/image-actions
	runs-on: ubuntu-latest
	steps:
	- name: Checkout Repo
	uses: actions/checkout@v3

	- name: Compress Images
	uses: calibreapp/image-actions@main
	with:
	# The `GITHUB_TOKEN` is automatically generated by GitHub and scoped only to the repository that is currently running the action. By default, the action can’t update Pull Requests initiated from forked repositories.
	# See https://docs.github.com/en/actions/reference/authentication-in-a-workflow and https://help.github.com/en/articles/virtual-environments-for-github-actions#token-permissions
	githubToken: ${{ secrets.GITHUB_TOKEN }}

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