Added reference to the NWGraph paper in the README. #13

	# Workflow to configure with cmake and build with gcc-10

	name: Build with gcc-11 (Mac)

	on:
	push:
	branches: [ master, sc_release ]
	workflow_dispatch:

	# pull_request:
	# branches:
	# - '*'

	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

	jobs:
	build:

	runs-on: macos-latest

	steps:

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

	# The macos image evidently has gcc-11 and cmake 3.22 pre-installed
	- name: prep
	run: \|
	brew update
	brew install tbb

	- name: cmake
	run: \|
	cd NWgr
	mkdir build
	cd build
	export TBBROOT=/opt/intel/oneapi/tbb/latest
	cmake .. -DCMAKE_BUILD_TYPE=RelWithDebInfo -DCMAKE_CXX_COMPILER=g++-11 -DNW_GRAPH_BUILD_DOCS=OFF -DNW_GRAPH_BUILD_TESTS=ON

	- name: make
	run: \|
	cd NWgr/build
	make -j -k

	- name: run_test
	run: \|
	cd NWgr/build
	make test

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