Update references #85

	name: Run GRFolres Tests (GCC)

	on: [push]

	jobs:
	build-and-test:
	runs-on: ubuntu-20.04
	env:
	CHOMBO_HOME: ${{ github.workspace }}/Chombo/lib
	OMP_NUM_THREADS: 1
	GRCHOMBO_HOME: ${{ github.workspace }}/GRChombo
	GRCHOMBO_SOURCE: ${{ github.workspace }}/GRChombo/Source

	steps:
	- name: Checkout Chombo
	uses: actions/checkout@v2
	with:
	repository: GRChombo/Chombo
	path: Chombo

	- name: Checkout GRChombo
	uses: actions/checkout@v2
	with:
	repository: GRChombo/GRChombo
	path: GRChombo

	- name: Checkout GRFolres
	uses: actions/checkout@v2
	with:
	path: ModifiedGravity

	- name: Install Chombo dependencies
	run: \|
	sudo apt-get update
	sudo apt-get -y --no-install-recommends install csh gfortran-10 g++-10 cpp-10 libhdf5-dev libhdf5-openmpi-dev openmpi-bin libblas-dev liblapack-dev libgetopt-complete-perl

	- name: Set Compilers
	run: \|
	sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-10 100
	sudo update-alternatives --install /usr/bin/gfortran gfortran /usr/bin/gfortran-10 100
	sudo update-alternatives --install /usr/bin/cpp cpp /usr/bin/cpp-10 100

	- name: Build Chombo
	run: \|
	cp $GRCHOMBO_HOME/InstallNotes/MakeDefsLocalExamples/ubuntu-gcc.Make.defs.local $CHOMBO_HOME/mk/Make.defs.local
	make -j 4 AMRTimeDependent AMRTools BaseTools BoxTools
	working-directory: ${{ env.CHOMBO_HOME }}

	- name: Build GRFolres Tests
	run: make test -j 4
	working-directory: ${{ github.workspace }}/ModifiedGravity

	- name: Run GRFolres Tests
	run: make run -j 2
	working-directory: ${{ github.workspace }}/ModifiedGravity

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