Add workflow and fix typos #1

	# A Github action that using codespell to check spell.
	# .codespell/.codespellrc is a config file.
	# .codespell/wordlist.txt is a list of words that will ignore word checks.
	# More details please check the following link:
	# https://github.com/codespell-project/codespell

	name: Codespell

	on: pull_request

	jobs:
	codespell:
	runs-on: ubuntu-latest

	steps:
	- name: Checkout the repository
	uses: actions/checkout@v4

	- name: pip cache
	uses: actions/cache@v4
	with:
	path: ~/.cache/pip
	key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}
	restore-keys: ${{ runner.os }}-pip-

	- name: Install prerequisites
	run: sudo pip install -r ./.codespell/requirements.txt

	- name: Spell check
	run: codespell --config=./.codespell/.codespellrc

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