added support for tables in markdown previewer #12

	name: Build React previewers

	on: [push]

	jobs:
	build_react_previewers:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v2
	- name: Set up Python 3.10
	uses: actions/setup-python@v2
	with:
	python-version: "3.10"
	- name: Install dependencies
	run: python3 -m pip install pyyaml checksumdir
	- name: Set up npm
	uses: actions/setup-node@v3
	- name: Run script and build apps
	run: python3 ./.github/scripts/build_previewers.py
	- name: Push built previewers
	run: \|
	if [[ `git status --porcelain` ]]; then
	git add --all
	git config --global user.name 'Previewer Builder'
	git config --global user.email '[email protected]'
	git commit -am "Previewer update"
	git push
	else
	echo "Nothing changed!"
	fi

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