Update a typo in presentation.md #652

	name: Docs Pull Request

	on:
	pull_request:
	paths:
	- 'docs/**'
	- '.github/workflows/pull-request-docs.yml'
	push:
	branches: [master]
	paths:
	- 'docs/**'
	- '.github/workflows/pull-request-docs.yml'

	concurrency:
	group: ${{ github.workflow }}-${{ github.event.pull_request.number \|\| github.ref }}
	cancel-in-progress: true

	jobs:
	all_github_action_checks:
	runs-on: ubuntu-latest
	if: needs.check_non_docs.outputs.run_all_github_action_checks == 'true'
	needs:
	- check_non_docs
	- build_docs
	steps:
	- run: echo "Done"

	check_non_docs:
	outputs:
	run_all_github_action_checks: ${{ steps.check_files.outputs.run_all_github_action_checks }}
	runs-on: ubuntu-latest
	steps:
	- name: Checkout code
	uses: actions/checkout@v4
	with:
	fetch-depth: 2

	- name: check modified files
	id: check_files
	run: \|
	echo "========== check paths of modified files =========="
	echo "run_all_github_action_checks=true" >> $GITHUB_OUTPUT
	git diff --name-only HEAD^ HEAD > files.txt
	while IFS= read -r file
	do
	if [[ $file != docs/** ]]; then
	echo "Found modified non-'docs' file(s)"
	echo "run_all_github_action_checks=false" >> $GITHUB_OUTPUT
	break
	fi
	done < files.txt

	build_docs:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- uses: actions/setup-node@v4
	with:
	node-version: '18'
	- name: "Build Docs"
	run: \|
	cd docs/
	npm ci
	./build.sh

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