update README #13

	name: CI

	on:
	push:

	jobs:
	build-and-test:

	name: Build and test emscripten

	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v3
	with:
	submodules: true

	- run: \|
	docker run -di --rm --name emscripten emscripten/emsdk:3.1.49 bash
	docker cp ${{ github.workspace }}/. emscripten:/src
	docker exec emscripten emcc -v
	docker exec emscripten apt-get update
	docker exec emscripten apt-get install -y cmake flex bison libglpk-dev libgmp-dev libarpack2-dev python3-venv
	docker exec emscripten cp /src/tools/IGRAPH_VERSION /src/vendor/igraph
	docker exec emscripten mkdir build
	docker exec -w /src/build emscripten emcmake cmake .. -DCMAKE_BUILD_TYPE=Release
	docker exec -w /src/build emscripten make test VERBOSE=1

	- if: always()
	run: docker stop emscripten \|\| true

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