added doc for collaboration #75

	name: Pretest

	on: [push, pull_request, workflow_call]

	jobs:
	test:
	runs-on: ubuntu-latest
	steps:
	- name: Check out code
	uses: actions/checkout@v3
	- name: Prepare a dev environment docker image
	run: \|
	docker build -t project-dev -f container/devel.Dockerfile .
	docker build -t project-test -f - . << EOF
	FROM project-dev
	ADD . /project

	# create empty files to make `go:embed` happy
	RUN \
	cd /project && \
	mkdir app/frontend/build && \
	touch app/frontend/build/test && \
	mkdir docs/build && \
	touch docs/build/test && \
	mkdir app/yjs-server/bin && \
	touch app/yjs-server/bin/yjs-server

	# generate code
	RUN cd /project && task openapi && task proto

	WORKDIR /project
	EOF
	- name: Lint
	run: docker run project-test task lint
	- name: Unit test
	run: docker run project-test task test
	- name: Build for e2e test
	run: \|
	docker build -t project-e2e -f - . << EOF
	FROM project-test
	RUN task build-dev
	EXPOSE 3000
	ENTRYPOINT ["/project/build/nutsh-dev"]
	CMD ["--port", "3000"]
	EOF
	- name: Start the server for e2e test
	run: \|
	docker compose -f - up -d << EOF
	version: "3.9"
	services:
	server:
	image: project-e2e
	ports:
	- "3000:3000"
	EOF
	- name: Install tools
	run: sh -c "$(curl --location https://taskfile.dev/install.sh)" -- -d -b /usr/local/bin
	- name: Prepare e2e test
	run: task e2e:install
	- name: End-to-end test
	run: task e2e:run

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