chore: update GHA badge in README #15

	name: Changelog

	on:
	push:
	branches: [ master ]

	jobs:
	update-changelog:
	name: Update changelog
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	with:
	fetch-depth: 0
	ref: master
	- uses: Bpazy/setup-git-chglog@v1
	- name: git-chglog version
	run: git chglog --version
	- name: Generate changelog
	run: git chglog \| tee CHANGELOG.md
	- name: Commit
	run: \|
	git config user.email ""
	git config user.name "GitHub Action Bot"
	git diff -- CHANGELOG.md
	git commit -m "chore: update CHANGELOG [skip ci]" CHANGELOG.md && git push origin master \|\| true

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