add smoke test checking error measures for the Shima_et_al_2009 box example. Closes #327 #1803

	name: JOSS paper code

	defaults:
	run:
	shell: bash

	on:
	push:
	branches: [ main ]
	pull_request:
	branches: [ main ]
	schedule:
	- cron: '0 13 * * 4'

	jobs:
	python:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- uses: actions/setup-python@v1
	with:
	python-version: 3.9
	- run: pip install -e .[tests]
	- run: pip install pytest-codeblocks pytest

	- run: python -c "import pytest_codeblocks; code=pytest_codeblocks.extract_from_file('paper/paperv1.md'); f=open('paperv1.py', 'w'); f.writelines(block.code for block in code); f.close()"
	- run: echo "$(echo 'warnings.simplefilter("ignore", category=DeprecationWarning)'; cat paperv1.py)" > paperv1.py
	- run: echo "$(echo 'import warnings'; cat paperv1.py)" > paperv1.py
	- run: python -We paperv1.py

	- run: python -c "import pytest_codeblocks; code=pytest_codeblocks.extract_from_file('paper/paper.md'); f=open('paper.py', 'w'); f.writelines(block.code for block in code); f.close()"
	- run: echo "$(echo 'warnings.simplefilter("ignore", category=DeprecationWarning)'; cat paper.py)" > paper.py
	- run: echo "$(echo 'warnings.simplefilter("ignore", category=NumbaExperimentalFeatureWarning)'; cat paper.py)" > paper.py
	- run: echo "$(echo 'import warnings'; cat paper.py)" > paper.py
	- run: echo "$(echo 'from numba.core.errors import NumbaExperimentalFeatureWarning'; cat paper.py)" > paper.py
	- run: python -We paper.py

Provide feedback