added signing key, updated readme #3202

	# https://github.com/marketplace/actions/helm-chart-testing
	name: Chart-Testing

	on:
	pull_request:
	branches: [main]
	paths: ["charts/**"]
	push:
	branches: [main]
	paths: ["charts/**"]
	workflow_dispatch:

	jobs:

	artifacthub-lint:
	runs-on: ubuntu-latest
	container:
	image: artifacthub/ah
	options: --user 1001
	steps:
	- name: Checkout
	uses: actions/checkout@v4

	- name: Run ah lint
	working-directory: ./charts
	run: ah lint

	helm-lint:
	runs-on: ubuntu-latest
	steps:
	- name: checkout git repository
	uses: actions/checkout@v4
	with:
	fetch-depth: 0

	- name: setup helm
	uses: azure/setup-helm@v3

	- name: Update dependencies
	run: find charts/ ! -path charts/ -maxdepth 1 -type d -exec helm dependency update {} \;

	- name: helm linting
	run : helm lint charts/*

	chart-testing:
	runs-on: ubuntu-latest
	steps:
	- name: checkout git repository
	uses: actions/checkout@v4
	with:
	fetch-depth: 0

	- name: setup helm
	uses: azure/setup-helm@v3

	- uses: actions/setup-python@v5
	with:
	python-version: 3.7

	- name: Set up chart-testing
	uses: helm/chart-testing-action@v2.6.1

	- name: Run chart-testing (list-changed)
	id: list-changed
	run: \|
	changed=$(ct list-changed --target-branch ${{ github.event.repository.default_branch }})
	if [[ -n "$changed" ]]; then
	echo "::set-output name=changed::true"
	fi

	- name: Run chart-testing (lint)
	run: ct lint --config .github/config/chart-testing.yaml

	- name: Create kind cluster
	uses: helm/kind-action@v1.10.0
	if: steps.list-changed.outputs.changed == 'true'

	- name: Run chart-testing (install)
	run: ct install --config .github/config/chart-testing.yaml

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