update the README.md #1087

	name: eos_cell

	on: [pull_request]
	jobs:
	eos_cell:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	with:
	fetch-depth: 0

	- name: Get AMReX
	run: \|
	mkdir external
	cd external
	git clone https://github.com/AMReX-Codes/amrex.git
	cd amrex
	git checkout development
	echo 'AMREX_HOME=$(GITHUB_WORKSPACE)/external/amrex' >> $GITHUB_ENV
	echo $AMREX_HOME
	if [[ -n "${AMREX_HOME}" ]]; then exit 1; fi
	cd ../..

	- name: Install dependencies
	run: \|
	sudo apt-get update -y -qq
	sudo apt-get -qq -y install curl cmake jq clang g++>=9.3.0

	- name: Compile eos_cell (helmholtz)
	run: \|
	cd unit_test/eos_cell
	make realclean
	make EOS_DIR=helmholtz -j 4

	- name: Run eos_cell (helmholtz)
	run: \|
	cd unit_test/eos_cell
	./main3d.gnu.ex inputs_eos > test.out

	- name: Compare to stored output (helmholtz)
	run: \|
	cd unit_test/eos_cell
	diff -I "^AMReX" test.out ci-benchmarks/eos_helmholtz.out

	- name: Compile eos_cell (gamma_law)
	run: \|
	cd unit_test/eos_cell
	make realclean
	make EOS_DIR=gamma_law -j 4

	- name: Run eos_cell (gamma_law)
	run: \|
	cd unit_test/eos_cell
	./main3d.gnu.ex inputs_eos > test.out

	- name: Compare to stored output (gamma_law)
	run: \|
	cd unit_test/eos_cell
	diff -I "^AMReX" test.out ci-benchmarks/eos_gamma_law.out

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