docs: update `ddev get` to `ddev add-on get` in readme #20

	name: Check for CHANGELOG.md Update

	permissions:
	contents: read

	on: [pull_request]

	jobs:
	check-changelog:
	runs-on: ubuntu-latest
	steps:
	- name: Check out the repository
	uses: actions/checkout@v3

	- name: Get the list of modified files
	id: changed-files
	run: \|
	git fetch origin ${{ github.base_ref }} --depth=1
	git diff --name-only origin/${{ github.base_ref }} ${{ github.sha }} > changed_files.txt
	cat changed_files.txt

	- name: Check if CHANGELOG.md was updated
	run: \|
	if ! grep -q "^CHANGELOG.md$" changed_files.txt; then
	echo "::error::CHANGELOG.md was not updated!"
	exit 1
	else
	echo "CHANGELOG.md has been updated."
	fi

Provide feedback