Add new workflow for detecting changes in dot org #20

	name: Detect changes in documentation within nginx/nginx.org

	on:
	pull_request:
	# workflow_dispatch:
	# schedule:
	# - cron: "0 /23 * *"
	permissions:
	pull-requests: write

	jobs:
	detect-changes:
	name: Detect changes in 'en' docs of nginx/nginx.org
	runs-on: ubuntu-latest
	outputs:
	IS_CHANGES_DETECTED: ${{ steps.check_changes.outputs.changed }}
	steps:
	- name: Clone the nginx/nginx-org repository
	run: \|
	git clone --depth=2 https://github.com/nginx/nginx.org.git dot-org-repo
	- name: Check for changes in xml/en folder
	id: check_changes
	run: \|
	cd dot-org-repo
	commit1=$(git rev-parse HEAD)
	commit2=$(git rev-parse HEAD^)

	if git diff --name-only $commit2 $commit1 \| grep '^xml/en/'; then
	echo "Changes detected in /en"
	echo "changed=true" >> $GITHUB_OUTPUT
	else
	echo "No changes in /en"
	echo "changed=false" >> $GITHUB_OUTPUT
	fi
	create-PR:
	name: Create PR in documentation repository
	if: needs.detect-changes.outputs.IS_CHANGES_DETECTED
	runs-on: ubuntu-latest
	steps:
	- name: Create a new branch
	run: gh pr create -B base_branch -H branch_to_merge --title 'NGINX Plus - Module Ref - Update content for content/nginx due to detected changes' --body '### Proposed Changes\nUpdated NGINX Plus docs'
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

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