Fix guide github action (#727) #124

	name: Guide

	on:
	push:
	branches:
	- master

	jobs:
	vuepress:
	runs-on: ubuntu-latest
	container:
	options: --user root
Check failure on line 12 in .github/workflows/guide.yml View workflow run for this annotation GitHub Actions / Guide Invalid workflow file `The workflow is not valid. .github/workflows/guide.yml (Line: 12, Col: 7): Container image cannot be empty`
	steps:
	- uses: actions/checkout@v2
	- name: Install vuepress
	run: \|
	sudo apt update
	sudo apt install yarn -y
	yarn global add vuepress
	yarn add vue-template-compiler
	- name: Build
	run: \|
	vuepress build
	working-directory: ./guide
	- name: Push
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	run: \|
	git init
	git add -A
	git commit -m 'deploy'
	git push -f https://x-access-token:${GITHUB_TOKEN}@github.com/bethgelab/foolbox.git master:gh-pages
	working-directory: ./guide/.vuepress/dist

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