Create an ArtifactHub-friendly ChangeLog

We already have a NEWS.md in each chart that is human-readable

Artifact Hub has a notion of putting a changelog inside of the Chart.yaml to tell about changes for a particular release

Chart.yaml

annotations:
  artifacthub.io/changes: |
    - kind: added
      description: Add Artifact Hub CLI tool
    - kind: added
      description: Add support for Keptn integrations
    - kind: added
      description: Search results can now be sorted by relevance or stars
    - kind: added
      description: Allow users deleting their accounts
    - kind: added
      description: Allow users cropping their avatar image
    - kind: changed
      description: Related packages are now displayed below the readme in some cases
    - kind: changed
      description: Use third party library for readme ToC generation
    - kind: changed
      description: Bump Alpine to 3.14
    - kind: changed
      description: Bump Trivy to 0.19.2
      links:
        - name: Trivy migrating to new JSON schema
          url: https://github.com/artifacthub/hub/pull/1437#issue-689445316
    - kind: changed
      description: Bump OPM to 1.17.5
    - kind: changed
      description: Upgrade backend dependencies
    - kind: changed
      description: Upgrade frontend dependencies
    - kind: fixed
      description: Some bugs and other improvements
  artifacthub.io/containsSecurityUpdates: "true"
  artifacthub.io/images: |
    - name: db-migrator
      image: artifacthub/db-migrator:v1.1.0
    - name: hub
      image: artifacthub/hub:v1.1.0
    - name: tracker
      image: artifacthub/tracker:v1.1.0
    - name: scanner
      image: artifacthub/scanner:v1.1.0
    - name: trivy
      image: aquasec/trivy:0.19.2
apiVersion: v2
appVersion: 1.1.0
dependencies:
- condition: postgresql.enabled
  name: postgresql
  repository: https://charts.helm.sh/stable
  version: 8.2.1
description: Artifact Hub is a web-based application that enables finding, installing,
  and publishing Kubernetes packages.
home: https://artifacthub.io
icon: https://artifacthub.github.io/helm-charts/logo.png
keywords:
- kubernetes
- helm
- falco
- opa
- olm
- tinkerbell actions
- krew
- tekton
- keda scalers
- coredns
- keptn
kubeVersion: '>= 1.14.0-0'
maintainers:
- email: tegioz@icloud.com
  name: Sergio
- email: cynthiasg@icloud.com
  name: Cintia
- email: matt@mattfarina.com
  name: Matt
name: artifact-hub
type: application
version: 1.1.0

An example of how it is displayed in ArtifactHub is here: https://artifacthub.io/packages/helm/artifact-hub/artifact-hub

• Find a way to maintain only 1 "source of truth" and code-generate the other, so that they stay in sync
• Set up the annotations in Chart.yaml
• Publish the chart and verify that the annotations show up in ArtifactHub

Start by comparing the existing NEWS.md files in each chart with the Chart.yaml annotation format shown in the issue, then review the linked ArtifactHub example. Identify the single source of truth, generate the other changelog representation, configure the annotations, and publish a chart to verify that the changelog appears in ArtifactHub.