Change letter grid background-color to yellow #12

	# .python-ci.yml

	name: basic CI
	on:
	push:
	branches: [ master, main ]
	pull_request:
	branches: [ master, main ]
	jobs:
	build-and-run-pytest:
	runs-on: ubuntu-latest
	steps:
	# First step (unnamed here) is to checkout to the branch that triggered the event
	- uses: actions/checkout@v3
	# Second step: install python 3.8
	- name: Set up Python 3.8
	uses: actions/setup-python@v2
	with:
	python-version: "3.8"
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install poetry
	poetry install
	- name: Run tests
	run: \|
	poetry run pytest

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