Add `text` Makefile commands (#924) #357

	# Starting as a separate Action as a POC.
	# Consider combining this with the build-pr
	# Action if we want to keep it.
	name: Validate Demo Metadata
	on:
	pull_request:
	push:
	branches:
	- master
	- dev
	concurrency:
	group: metadata-validation-${{ github.ref }}
	cancel-in-progress: true
	jobs:
	validate-demos:
	runs-on: ubuntu-22.04
	steps:
	- name: Checkout
	uses: actions/checkout@v3
	with:
	fetch-depth: 1

	- name: Setup Python
	uses: actions/setup-python@v4
	with:
	python-version: 3.9

	- name: Install Python Dependencies
	run: \|
	pip install poetry
	poetry install --only metadata-validation

	- name: Validate Metadata
	run: \|
	cd metadata_schemas
	files=`find ../demonstrations -name ".metadata.json" -not -path "/demonstrations_categories.metadata.json" \| tr '\n' ' '`
	poetry run check-jsonschema -v --traceback-mode full --schemafile demo.metadata.schema.0.1.0.json $(echo $files)

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