Update vr_demos.md #91

	name: Build & deploy docs

	on: [push, pull_request]

	jobs:
	build-docs:
	name: Build documentations
	runs-on: ubuntu-latest

	steps:
	- name: Checkout code
	uses: actions/checkout@v2

	- name: Setup python
	uses: actions/setup-python@v2
	with:
	python-version: "3.8"
	architecture: x64

	- name: Upgrade pip (avoid issues with current broken pip release)
	run: pip install --upgrade pip

	- name: Install dev requirements
	run: pip install -r requirements-dev.txt

	- name: Generate docs
	working-directory: ./docs
	run: make html

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

	deploy-docs:
	name: Deploy prod documentation
	needs: build-docs
	runs-on: ubuntu-latest
	if: github.repository == 'StanfordVL/behavior' && github.ref == 'refs/heads/main'

	steps:
	- name: Download artifact
	uses: actions/download-artifact@v2
	with:
	name: docs
	path: ./docs/_build/html

	- name: Deploy to gh-pages
	uses: peaceiris/actions-gh-pages@v3
	with:
	github_token: ${{ secrets.GITHUB_TOKEN }}
	publish_dir: ./docs/_build/html

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