Making a new Changelog.md

Use gh commandline client:

• brew install gh
• create new personal access token, minimum required scopes are 'repo', 'read:org', 'workflow': (settings > developer settings > personal access tokens) with full 'repo' rights: https://github.com/settings/tokens
• gh auth login (choose github.com, https, personal access token): then paste the token
• gh issue list --limit 1000 --state closed > ~/Documents/denkfabrik/wekitecs/mirage/changelog/issues-closed.csv
• gh pr list --limit 1000 --state closed > ~/Documents/denkfabrik/wekitecs/mirage/changelog/pr-closed.csv