Add Jupyter Media Strategy Charter #129

	# Build the book and upload it to GitHub Artifacts for inspection in a PR
	name: build

	# Run on every pull request
	on:
	pull_request:
	branches: '*'

	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2

	# Install dependencies
	- name: Set up Python
	uses: actions/setup-python@v2
	with:
	python-version: 3.x

	- uses: actions/cache@v2
	with:
	path: ~/.cache/pip
	key: ${{ runner.os }}-pip-${{ hashFiles('*/.md') }}
	restore-keys: \|
	${{ runner.os }}-pip-

	- name: Install dependencies
	run: \|
	pip install jupyter-book


	# Build the book
	- name: Build the book
	run: \|
	jupyter-book build .

	# Upload artifact
	- uses: actions/upload-artifact@v2
	with:
	name: html_docs
	path: ./_build/html

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