add assert and manual for environment variables, fix readme, fix pre-commit #3

	name: Python Code Quality Checks

	on:
	push:
	branches:
	- main
	pull_request:
	branches:
	- main

	jobs:
	pre-commit:
	runs-on: ubuntu-latest

	steps:
	- name: Checkout code
	uses: actions/checkout@v3

	- name: Set up Python
	uses: actions/setup-python@v4
	with:
	python-version: 3.11

	- name: Cache pip
	uses: actions/cache@v3
	with:
	path: ~/.cache/pip
	key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}
	restore-keys: \|
	${{ runner.os }}-pip-

	- name: Install dependencies
	run: pip install pre-commit==2.20.0 ruff==0.1.5 black==23.12.0

	- name: Run pre-commit on all files
	run: pre-commit run --all-files -v

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