README improvements #179

	on:
	push:
	branches-ignore:
	- website
	- gh-pages
	pull_request:
	branches-ignore:
	- website
	- gh-pages

	jobs:
	BuildUbuntu:
	name: Build on Ubuntu with clang (${{ matrix.configuration }})
	runs-on: ubuntu-latest
	strategy:
	matrix:
	configuration: [Debug, Release]
	steps:
	- name: Clone Tree
	uses: actions/checkout@v3

	- name: Build container image
	run: \|
	docker build -t halo .

	- name: Build
	run: \|
	docker run --rm -u $(id -u):$(id -g) -v $PWD:/work -w /work halo /bin/bash -c "cmake -Bbuild -S. -DCMAKE_TOOLCHAIN_FILE=toolchains/llvm.cmake -DCMAKE_BUILD_TYPE=${{ matrix.configuration }} && cmake --build build --target halo"

	BuildWindows:
	name: Build on Windows with MSVC (${{ matrix.configuration }})
	runs-on: windows-latest
	strategy:
	matrix:
	configuration: [Debug, Release]
	steps:
	- name: Clone Tree
	uses: actions/checkout@v3

	- uses: actions/setup-python@v4
	with:
	python-version: '3.10'

	- name: Build
	run: \|
	python -m pip install --user -r requirements.txt
	cmake -AWin32 -Bbuild -S.
	cmake --build build --target halo --config ${{ matrix.configuration }}

	BuildMacos:
	name: Build on macOS with clang (${{ matrix.configuration }})
	runs-on: macos-latest
	strategy:
	matrix:
	configuration: [Debug, Release]
	steps:
	- name: Clone Tree
	uses: actions/checkout@v3

	- name: Build
	run: \|
	brew install llvm
	python3 -m pip install --user -r requirements.txt
	export PATH="/opt/homebrew/opt/llvm/bin:/usr/local/opt/llvm/bin:$PATH"
	cmake -Bbuild -S. -DCMAKE_TOOLCHAIN_FILE=toolchains/llvm.cmake -DCMAKE_BUILD_TYPE=${{ matrix.configuration }}
	cmake --build build --target halo

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