doc: fix headings in markdown files #878

	# Copyright (C) 2024 Intel Corporation
	# SPDX-License-Identifier: Apache-2.0

	name: Check for missing Dockerfile paths in repo comps

	on:
	pull_request:
	branches: [main]
	types: [opened, reopened, ready_for_review, synchronize]

	jobs:
	check-dockerfile-paths:
	runs-on: ubuntu-latest

	steps:
	- name: Clean Up Working Directory
	run: sudo rm -rf ${{github.workspace}}/*

	- name: Checkout repo GenAIExamples
	uses: actions/checkout@v4

	- name: Clone repo GenAIComps
	run: \|
	cd ..
	git clone https://github.com/opea-project/GenAIComps.git

	- name: Check for missing Dockerfile paths in GenAIComps
	run: \|
	cd ${{github.workspace}}
	miss="FALSE"
	while IFS=: read -r file line content; do
	dockerfile_path=$(echo "$content" \| awk -F '-f ' '{print $2}' \| awk '{print $1}')
	if [[ ! -f "../GenAIComps/${dockerfile_path}" ]]; then
	miss="TRUE"
	echo "Missing Dockerfile: GenAIComps/${dockerfile_path} (Referenced in GenAIExamples/${file}:${line})"
	fi
	done < <(grep -Ern 'docker build .* -f comps/.+/Dockerfile' --include='*.md' .)


	if [[ "$miss" == "TRUE" ]]; then
	exit 1
	fi

	shell: bash

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