Add missing backslash in documentation #18

	name: Build documentation ⚙️

	on:
	push:
	branches:
	- master
	paths:
	- 'docs/**'
	pull_request:
	branches:
	- master
	paths:
	- 'docs/**'
	release:
	types:
	- released

	jobs:
	main:
	runs-on: ubuntu-22.04
	strategy:
	matrix:
	include:
	- python-version: '3.10'
	steps:
	- uses: actions/checkout@v2
	- uses: actions/setup-python@v2
	name: Setup Python ${{ matrix.python-version }}
	with:
	python-version: ${{ matrix.python-version }}
	- name: Install requirements 📦
	run: \|
	pip3 install -r requirements.txt
	pip3 install -r docs/requirements.txt
	- name: build docs 🏗️
	run: cd docs && make html

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